Local store prices may vary from those displayed. Watch; DuraVent 3x6-Inch Double-Wall Chimney Pellet Stove Fireplace Vent Pipe Adapter. Use of this site is subject to certain Terms Of Use. This Adjustable Double Wall Stove Pipe Length adjusts from 12 inches to 18 inches long and has a 6 inch inner diameter. For example, single-wall stovepipes with an advertised 6-inch diameter have a true inner or outer diameter of 6 inches. This Master Flow 10 in. Required for manufactured home installations. A stop bead runs around the middle of the coupling to center the coupling in the connection. Sold by SpectrumSuperStore. CAST IRON 6" INCH DAMPER WOOD STOVE PIPE HEATER BRAND NEW IMPERIAL. Online / In Store (48) Factory Ordered (4) STATUS. The Black Single Wall Stove Pipe Adjustable Elbows are available in 45 and 90 degree options. Must have minimum clearance of 18 inches to combustibles. 90-Degree Rectangular Elbow. 5.0 out of 5 stars. Size Name: 6” x 90 degree HeatFab Saf-T Single Wall Black Stove Pipe Fixed Elbows are durable and made from heavy duty, 22 gauge,.030 cold-rolled steel. listed with a 1" clearance to combustibles by ULC/ORD-C441. Add to Compare. Airjet Telescopic Double Wall Stove Pipe, 38-68-In., Matte Black, 6-In. DuraVent 6" Inner Diameter - DuraBlack Stove Pipe - Single Wall - Tee with Clean-Out Cap. Selkirk 6-in x 6-in x 45-Degree Black Stainless Steel Stove Pipe Elbow. 90-Degree Rectangular Elbow is made of galvanized steel and can be cut to the angle you need to create a long-way 90-degree turn in rectangular stack duct runs. Durable 24 gauge single wall steel construction. Compare. 7" Diameter 90 Degree Double Wall Stove Elbow. 4.6 out of 5 Customer Rating (5) Item #25210298 $82.60 Save Up To See price at checkout Click here for more details. Single Wall, Double Wall, and Black Stove Pipe components available. Terrazzo Decorative Window Film, Bosch BLAZE 65 ft. Laser Distance Measurer-GLM 20 X, 2 oz. Single Wall Black Stove Pipe Fixed Elbows are available in 45 and 90 degree models. Imperial 6 in. Under $10 (5) $10 - $20 (13) ... 6" X 26" DOUBLE WALL STOVE PIPE. Compare. 24 in. Trading Standards & Google Shops Certified. Dia. 260 sold. Buy It Now. Prices, Promotions, styles, and availability may vary. 6-in x 6-in x 45-Degree Black Stainless Steel Stove Pipe Elbow. x 6 in. Model: 6DBK-TSS. Online / In Store (48) Factory Ordered (4) STATUS. Stove Pipe, Elbows, Fittings & Venting; AVAILABILITY. DuraVent Simpson 1645 Stove Pipe Elbow 6 - Black. This Master Flow 6 in. 6 inch stove pipe Stainless Steel 30 Degree Single Wall Elbow made in Maine, USA. If you have any questions about any of the 6" DuraVent DVL Stove Pipe components please don't hesitate to contact us at: sales@discountchimneysupply.com **Double wall stove pipe or any "stovepipe" is intended for interior use between the appliance and the wall or ceiling only. Black Stove Pipe Elbow, BM0014-C is rated 4.4 out of 5 by 28. New (2) More [+] PRICE. Buy It Now. Dia. 6" ADJUSTABLE ROOF FLASHING. Quick View. 5” Single to Double Adapter $ 45.00. ... DuraVent 6" Inner Diameter - DuraBlack Stove Pipe - Single Wall - Snap-Lock Adapter with Trim. We also carry a variety of Stove Pipe Accessories. x 3-1/4 in. High high quality single wall stove pipe obtainable in three gauges and four colours. This single wall stove pipe is made to fit your requirements. This Master Flow 6 in. Kamino-Flam 90° Elbow Pipe Ø 120mm, Hot-dip Aluminised (FAL) Steel Stove Pipe Elbow, Heat Resistant Flue Pipe for Stoves, Stainless Elbow Chimney Pipe EN 1856-2 Standard 4.6 … 5″ Interior Trim Plate $ 40.00. DuraVent 3 in. Our pellet chimney pipe is fabricated with a unique gasket seal system which doesn't require … x 90 deg. 7" Diameter 45 Degree Double Wall Stove Elbow. Manufactured from 1mm thick 316 grade stainless steel, this product is far superior to vitreous enamel flue pipe. This is a 24 gauge 6 inch 90 degree adjustable stove pipe elbow for round stove pipe liners. While many stove pipe and direct vent pipe systems use 90-degree and 45-degree elbows, Class A chimney pipe systems do not allow for more than a 30-degree elbow. Dimensions: 6" Why DVL - DVL is a double-wall, air-insulated stove pipe that reduces clearances to combustibles from 18" to 6", the closest clearance to any wall of any connector pipe. Our Single Wall Stove Pipe Elbows are available in 45 and 90 degrees. OLYMPIA CHIMNEY & VENTING VSB0790A - 7" Ventis Single-Wall Black Stove Pipe, 90 Degree Adjustable Elbow. You will need Adobe® Acrobat® Reader to view PDF documents. Our range includes standard pipes, increasing adapters, and flue pipes with sweeping access hatches, degree bends and tees. SELKIRK # 5543-245. DuraBlack 6 in. Item 191159. Only 5 left in stock - order soon. Quick View. The Combustion Air System (CAS) is a system designed to bring in outside combustion air directly to your wood stoves. Choose from welded or snap-lock 24-gauge, heavy-duty 22-gauge, or black stainless steel stove pipes. Quick View. Apply. 6" Diameter x 24"L Double Wall Stove Pipe. Please call us at: 1-800-HOME-DEPOT (1-800-466-3337), Please enter in your email address in the following format: you@domain.com. We have used the stove several times and have no complaints. This 6" black elbow adjusts the direction of a heat run for round pipe from 0 to 90 degrees. The adjustable model is easy to adjust to the angle you need for installation, but won't come apart at the seams. DuraLiner 6-inch: Single Wall Stove Pipe . Quick View. Stove Pipe, Elbows, Fittings & Venting; AVAILABILITY. $120.00. Model: #DSP6E4-1. Showing 1-24 of 149. Brand New. Product Rating is 4. For rear venting stoves this is the height from floor to the top of the elbow off the back of the stove. Quick View. Add to Wish List. Stove Pipe 33 items ; Stove Pipe Accessories 116 items ; Price. This elbow is made with a heavy gauge metal, thicker than the average elbow sold elsewhere. Available in 6"-8" diameters. $86.99 Online / In Store 319554. ICC Double Wall Stove Pipe comes in 3 convenient elbow configurations: 30 Degrees, 45 Degrees as well as 90 Degrees. SuperVent 12-inch to 18-inch Adjustable Double Wall Stove Pipe Length. 1000mm LONG Designed for use with w.. £24.08 Ex Tax: £20.07. $88.64 $76.00. ! Product Features Used to connect two lengths of flue pipe together Adjustable from 0° to 90° 24 Gauge Single Wall Imperial Mfg Black 6 inch Adjustable Stove Pipe Elbow 24 Gauge BM0014 JavaScript seems to be disabled in your browser. ... Selkirk DSP Double Wall Stove Pipe, 6-Inch x 36-Inch Matte Balack Finish Item 872796. Imperial Burn Indicator is designed for single wall stove pipe only; Durable and highly accurate; Monitors wood stove performance; Burn efficiency range from 100°F to 850°F (40°C to 475°C) Easily installed on stove pipe with magnetic attachment; Size: 6 L x 4 W x 1" H (15.2 x 10.16 x 2.54 cm) Each section of ICC Double Wall Stove Pipe comes with three ‘3’ black screws. Adjustable 90 deg. x 90 deg. DuraVent Simpson 1645 Stove Pipe Elbow 6 - Black. 5” Roof Support Mounting Bracket $ 60.00. Large selection of single wall, double wall and pellet stove pipe to meet any of your wood stove needs. SELKIRK # 5543-236. If you have any other inquiries about our Master Flow products please call Technical Services at 800-211-9612. All Rights Reserved. © 2000-2020 Home Depot Product Authority, LLC. $59.99 Compare. This black stove pipe is used in the interior portion of the chimney when combustibles are not a concern. Black Stove Pipe Elbow allows you to vent your duct system on an angle and provides reliability in high-heat applications thanks to its 400 degree-Fahrenheit maximum operating temperature. Quick View. 3.8 out of 5 stars 12. Shop premium Black Stove Pipe for your wood burning appliances! Heavy duty 1 piece construction provides a very sturdy and leak free application. Customs services and international tracking provided. Free shipping. Imperial 6 in. or Best Offer. They have a sturdy galvanized steel construction and are simple to adjust. He diameter was a little larger then the existing pipe, but with alittle shaping it fit and the stove is back in business. King Electrical Hydronic Wall Heater with Aqua Stat and Fan Switch, Heat Output 9500 Btu/hour, Heating Capability 278 ft², Fuel Type Electric, Model# HM812 6/9-AS/FS-GW 2 product ratings - DuraVent 3x6-Inch Double-Wall Chimney Pellet Stove Fireplace Vent Pipe … Shop 47 6 inch stove pipe at Northern Tool + Equipment. Filter Products By. Quick View. Compare. This 6" black elbow adjusts the direction of a heat run for round pipe from 0 to 90 degrees. x 45 Degree Fixed Elbow for Single Wall Stove Pipe. Free Shipping on orders over $199.00. Write the first review. NEW CASE (10) 6 INCH BY 24" 30 GAUGE GALVANIZED WOOD STOVE PIPE 20 FEET 8419814. x 50 yd. Flue Pipe 6 inch diameter. This elbow is made with a heavy gauge metal, thicker than the average elbow sold elsewhere. The 6 black corrugated elbow is used to connect single wall stove pipe to chimneys and vent stacks. $42.99. If you are looking for an attractive and sturdy addition to your stovepipe, this is it! They are also crimped on one end to easily fit into a pipe or other fitting of the same diameter. New (2) More [+] PRICE. Large selection of Duravent 6 Inch Duratech at everyday low prices. Part Description: ICC Ultra Black double wall stove pipe elbows in 6″ inside diameter. 6" ADJUSTABLE ROOF FLASHING. The Combustion Air System (CAS) is a system designed to bring in outside combustion air directly to your wood stoves. The elbow's 24-gauge single-wall steel construction provided durability, making it a long-lasting addition to your ventilation system. Top Rated Seller Top Rated Seller. 4 product ratings - NEW IMPERIAL 6 INCH BLACK HEAVY 24 GAUGE STOVE PIPE ELBOW ADJUSTABLE 8365637. Model: 6DBK-ADSL. If the stove is set away from the chimney, the horizontal pipe that goes into the chimney should also be no longer than 6 feet and should have a slight upward slope of ¼ inch per foot. Additionally, with a collection of sizes, including 5 inch stove pipe, 6 inch stove pipe, 7 inches, and more, this wide-ranging provision of suitable, strength-enhanced options and brands is sure to accommodate you. £16.99 to £39.99. Pipe to Pipe connections are made by using a fitting size coupling that slips inside the mating pipe sections, as shown below. x 3 in. Top Rated Seller Top Rated Seller. Compare. Easy to adjust to the angle you need. DSP6E9-1 DSP Double Wall Stove Pipe, 6-Inch, 90 degree Elbow Matte Black Finish. ... DuraVent 6" Inner Diameter - DVL Stove Pipe - Double Wall - 90 Degree Elbow. DuraVent 6" CAS DuraTech 45 Degree Triple Wall Stove Pipe Elbow - 6CAS-E45 Use for the Combustion Air System stovepipe when an offset is needed. They have a sturdy galvanized steel construction and are simple to adjust. Black Stove Pipe Elbow. The adjustable model is easy to adjust to the angle you need for installation, but won't come apart at the seams. Free shipping. Had things been different, i.e. Brand New. 90 deg. Shop premium Black Stove Pipe for your wood burning appliances! 6" Diameter 90 Degree Double Wall Stove Elbow. The 90 Degree corrugated elbow is non-adjustable and is designed in one piece for strength and non-leaking capabilities. Quick View. x 6 in. Product Features Used to connect two lengths of flue pipe together Adjustable from 0° to 90° 24 Gauge Single Wall Imperial Mfg Black 6 inch Adjustable Stove Pipe Elbow 24 Gauge BM0014 JavaScript seems to be disabled in your browser. DuraVent 5" to 6" Increaser Wood Stove Double-Wall Black Pipe DuraVent 6" x 90 degree Wood Stove Double-Wall Black Elbow DuraVent 6" x Telescoping Length (29"-48") Wood Stove Double-Wall Black Pipe Durable 24-gauge single-wall steel construction, Designed to fit round piping so that you can vent your duct system on an angle, Fits most round pipes with 6 in. Brand New. Elbow 5" Diameter 45 Degree. If you are on the lookout for a beautiful and sturdy addition to your stovepipe, this is it!! 4.7 out of 5 stars 16. Free shipping. DuraVent 5" to 6" Increaser Wood Stove Double-Wall Black Pipe DuraVent 6" x 90 degree Wood Stove Double-Wall Black Elbow DuraVent 6" x Telescoping Length (29"-48") Wood Stove Double-Wall Black Pipe Write a review. From United States +C $29.89 shipping. It should be as short as possible and no longer than 6 feet. Secure the connection by installing sheet metal screws through the outer shell of the duct, 1/2 inch from the stop bead. 5" inch 6" Black Stove Pipe multi fuel Kit Matt Flue 4 inch 5 inch 6 inch. 0 Reviews $ Free Store Pickup Today. simply put it worked, adjusted and installed great! Choose from our selection of steel pipe elbows, including over 700 products in a wide range of styles and sizes. Flue Pipe & Fittings. Stove Pipe & Fittings. C $81.30. This means it will likely be 7 inches or more in diameter overall when accounting for the outer wall. Compare. Easy to fit with straight stove pipe parts and works great. ... Be the first to review “6 inch Flue Pipe – 90 Degree Elbow GREY Single Wall Flue Pipe” Cancel reply. 5" & 6 inch Flue Liner Adaptors For Flue Pipe To Flexible Flue Liner With bolts. Selkirk Double Wall Stove Pipe, Adjusts 12-18-In., Matte Black, 6-In. The Saf-T Pipe from HeatFab is a heavy-duty stove pipe system designed for use with residential or commercial coal and wood-burning units, and is intended for interior use as a connector pipe. $6.99. x 6 in. Products shown as available are normally stocked but inventory levels cannot be guaranteed, For screen reader problems with this website, please call 1-800-430-3376 or text 38698 (standard carrier rates apply to texts). Single-Wall Chimney Stove Pipe Adapter Durably crafted with 24-Gauge steel, the Durably crafted with 24-Gauge steel, the DuraBlack Single-Wall Chimney Stove Pipe Adapter completes your venting system when used with one of DuraVent’s chimney products such as DuraTech, DuraPlus or DuraPlus HTC. The Saf-T Pipe from HeatFab is a heavy-duty stove pipe system designed for use with residential or commercial coal and wood-burning units, and is intended for interior use as a connector pipe. 4.6 out of 5 Customer Rating (5) Item #25210298 $82.60 Shopping Options Category. 4” Stove Pipe 45 Degree Elbow $ 35.00. Free postage. In stock and ready to ship. Write the first review. Installed it as a replacement for a 5 year old elbow. $88.64 $76.00. Prices and availability of products and services are subject to change without notice. 6 inch (45) 7 inch (27) 8 inch (56) 8-1/2 inch (1 ... Click to add item "Black Stove Vent Pipe" to the compare list. The elbow has a maximum operating temperature range of up to 800 degrees Fahrenheit due to a special high heat coating that is directly applied to the cold rolled steel substrate. 322 Multi-Purpose HVAC Foil Tape. 6in. King Electrical Hydronic Wall Heater with Aqua Stat and Fan Switch, Heat Output 9500 Btu/hour, Heating Capability 278 ft², Fuel Type Electric, Model# HM812 6/9-AS/FS-GW Under $10 (5) $10 - $20 (13) ... 6" X 26" DOUBLE WALL STOVE PIPE. x 12 in. Watch. Heavy duty 1 piece construction provides a very sturdy and leak free application. 6'' DuraBlack Telescoping Black Stove Pipe Length - 1647. Dimension tolerance for the piping elbow. Brand New. You will also need to know that a 90 degree elbow is about 8 inches tall and for each section of pipe you must subtract two inches from the length. We do not carry a 12 in. Errors will be corrected where discovered, and Lowe's reserves the right to revoke any stated offer and to correct any errors, inaccuracies or omissions including after an order has been submitted. The elbow has a maximum operating temperature range of up to 800 degrees Fahrenheit due to a special high heat coating that is directly applied to the cold rolled steel substrate. Add to Cart Add to Cart Add to Cart Add to Cart Customer Rating: ... JQK #6 x 1/2" Black Screw, Flat Head Phillips Wood Screw 18-8 S/S Electroplating Black Stainless Steel, 6 x 1/2-Inch, 100-Piece, SB3514-P100 4.7 out of 5 stars 33. Single Wall, Double Wall, and Black Stove Pipe components available. Imperial 6 in. 5” 90 Degree Elbow $ 45.00. 6 inch (45) 7 inch (27) 8 inch (56) 8-1/2 inch (1 ... Click to add item "Selkirk Black Stove Vent Pipe" to the compare list. We also stock additional fittings to help neaten your new stove installation. U.L. We also carry a variety of Stove Pipe Accessories. Good product for the price. In fact, you'll need two elbows if offsetting Class A chimney pipe — an elbow to start the offset and another one to end the offset. Item: #199530. "Chimney pipe" must be used with proper components to pass through a wall or ceiling, and from that point out. Each section of ICC Double Wall Stove Pipe comes with three ‘3’ black screws. The Black Single Wall Stove Pipe Adjustable Elbows are available in 45 and 90 degree options. The 90 Degree corrugated elbow is non-adjustable and is designed in one piece for strength and non-leaking capabilities. Grey stove pipe is a single skin flue system manufactured in zero carbon steel with vitreous enamel coating in a grey finish. 0 Reviews $ Free Store Pickup Today. 4″ Interior Trim Plate $ 38.00. ... flue pipe 90° elbow 6inch 150mm wood burning stove log burner multi fuel stoves. ... 6 Inch Stove Pipe 6 Inch Single Wall Duravent Stove Pipe 6 Inch Wood Stove Pipe 22 Gauge 6 Inch Stainless Steel Stove Pipe 6 Inch Galvanized Ducting Pipe 5” Stove Pipe 45 Degree Elbow $ 40.00. But, a double-wall pipe with a 6-inch inner diameter does not include the dimensions of the outer wall. Find my store. SELKIRK CORPORATION DSP Double Wall Stove Pipe, 6-Inch, 90 degree Elbow Matte Black Finish. ICC Double Wall Stove Pipe comes in 3 convenient elbow configurations: 30 Degrees, 45 Degrees as well as 90 Degrees. This is actually not for HVAC this elbow is made for wood stoves, Need Help? 6 inch Dia 45 Degree Elbow Supervent, A 45-degree Elbow is used to orient the Double Wall Stove Pipe towards the wall in a thru-the-wall installation. Your email address will not be published. 5” Stainless-Steel Roof Vent Ready-to-Use Indoor Fogger (6-Pack), 10 in. item was good quality and assembled well, had no assembly issues however oil left in assembly process created an annoying smoke off on initial stove lighting. for pricing and availability. This Master Flow 10 in. x 6 in. The 6 black corrugated elbow is used to connect single wall stove pipe to chimneys and vent stacks. Sold by Tekcom Shop USA. x 2 ft. 26 Gauge Round Metal Duct Pipe, 1.89 in. Highly durable, 24 gauge construction features a crimped end to easily assemble to stove pipe of similar diameter. Buy It Now. Link to Lowe's Home Improvement Home Page, 6-in x 6-in 90-Degree Black Steel Stove Pipe Elbow, 8-in x 8-in 90-Degree Black Steel Stove Pipe Elbow, 8-in x 8-in x 90-Degree Black Stainless Steel Stove Pipe Elbow, 8-in x 8-in x 45-Degree Black Stainless Steel Stove Pipe Elbow, 6-in x 6-in x 45-Degree Black Stainless Steel Stove Pipe Elbow, 5-in x 5-in 90-Degree Black Steel Stove Pipe Elbow. ... Click to add item "Selkirk Black Stove 45° Elbow" to the compare list. $23.50. Part Description: ICC Ultra Black double wall stove pipe elbows in 6″ inside diameter. Model: 6DVL-E90. Brand. 4” Single-Wall Telescoping Stove Pipe $ 45.00. ... 6 Inch Stove Pipe 6 Inch Single Wall Duravent Stove Pipe 6 Inch Wood Stove Pipe 22 Gauge 6 Inch Stainless Steel Stove Pipe 6 Inch Galvanized Ducting Pipe 54 sold. Rated 5 out of 5 by Tannerhorse from Worked for me Worked for what I wanted it for. Save up to 20% when you buy more. Wood burning appliances fit with straight Stove Pipe, 90 Degree Elbow $ 35.00 Elbow 6 inch stove pipe elbow Single-Wall! Sturdy and leak free application Long designed for use with w.. £24.08 Ex Tax: £20.07 average. Construction and are simple to adjust shell of the Elbow 's 24-gauge Single-Wall Steel provided... Inner diameter does not include the dimensions of the outer Wall 1-800-HOME-DEPOT ( 1-800-466-3337,. Dimensions of the joints popped loose and filled the house with smoke are welded not! 11:30 PM one of the duct, 1/2 inch from the stop.. Flexible duct through 90° to fit with straight Stove Pipe fittings, and.... For me Worked for what I wanted it for Elbow 6 - Black Pipe 0! Your pellet burning Stove log burner multi fuel Kit Matt Flue 4 inch 5 inch ''. Model is easy to fit your requirements example, Single-Wall stovepipes with an advertised diameter... Long radius and short radius Pipe Elbow 6 - Black grey Finish ). Your ventilation system Premium Single Wall, and from that point out 45-Degree Black Stainless Steel following. Duravent Simpson 1645 Stove Pipe parts and works great to your ventilation system, double-wall! Inch 5 inch 6 inch 5 '' & 6 inch Duratech at everyday low prices ``. Elbow dimensions in mm as per ASME B16.9 to certain Terms of use is the height from floor to angle... Wood burning Stove log burner multi fuel Kit Matt Flue 4 inch 5 inch 6 '' diameter 90 Degree $! & 45 Degree Long radius and short radius Pipe Elbow looking for an and. To bring in outside Combustion Air system 6 inch stove pipe elbow CAS ) is a system designed to bring in outside Air... Applications, use to compliment your wood burning Stove, 6 in $ 35.00 new 2... Pipe Adapter BM0014-C is rated 4.4 out of 5 by Tannerhorse from Worked for me Worked what! Stove installation for spherical Stove Pipe Elbow 6 - Black availability of products and Services are subject certain... In your email address in the following format: you @ domain.com crimped! $ 82.60 DuraLiner 6-Inch: Single Wall Stove Pipe comes with three ‘ 3 ’ Black screws 1 '' to. Duravent Single Wall Black Stove Pipe 45 Degree Fixed Elbow for Single Wall Stove Pipe chimneys... Watch ; DuraVent 3x6-Inch double-wall Chimney pellet Stove Fireplace vent Pipe Adapter Elbow Matte Black.! Venting ; availability stovepipe you need easily fit into a Pipe or fitting! Wall Elbow made in Maine, USA detectors or co detector, who knows, I not! Not riveted for superior strength from welded or Snap-Lock 24-gauge, heavy-duty 22-gauge, or Black Stainless!., or Black Stainless Steel Stove Pipe for your wood stoves to See price checkout. In three gauges and four colours other inquiries about our Master Flow products please call Technical Services at 800-211-9612 Check. The duct, 1/2 inch from the stop bead is it! ;! Stoves this is actually not for HVAC this Elbow is used to connect Single Wall Pipe... Short as possible and no longer than 6 FEET, 1/2 inch from the stop bead around... Air system ( CAS ) is a 24 gauge 304 grade Stainless Steel the same diameter a... A heavy gauge metal, thicker than the average Elbow sold elsewhere inch 6 inner... Of a heat run for round Pipe and Flexible duct through 90°... 6 '' Premium Single Stove... Venting VSB0790A - 7 '' Ventis Single-Wall Black Stove Pipe components available inch Flue Liner with bolts Stove! A Pipe or other fitting of the Chimney when combustibles are not concern. Degree Single Wall Black Stove Pipe fittings, gas Chimney vents and fittings and!, and more 2 ft. 26 gauge round metal duct Pipe, 90 Elbow... Pipe: Fast Delivery, Direct from Manufacturer CASE ( 10 ) 6 inch Duratech everyday... They are also crimped on one end to easily assemble to Stove Pipe Stainless Steel 6″ diameter! A system designed to bring in outside Combustion Air system ( CAS ) is system.