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Venting modern gas, oil, or coal appliances, can be challening, your chimney liner is subjected to highly acidic, corrosive condensation. Standard alloys simply won't survive. Our 316L Stainless Steel 2-Part Tee OD (Outside Diameter) is engineered specifically to be the ultimate, corrosion-resistant junction between your all-fuel appliance and your rigid chimney liner. Fabricated to exact OD specifications, this heavy-duty fitting slides seamlessly into your rigid pipe sections, ensuring a secure, leak-proof seal that keeps dangerous exhaust and corrosive byproducts safely contained inside the flue.
Maximum Corrosion Resistance (316L Alloy): Constructed from premium 316L stainless steel containing molybdenum, this tee is chemically engineered to withstand the harsh, acidic exhaust produced by gas furnaces, oil heaters, and coal stoves (while remaining perfectly safe for wood and pellets).
Precision OD (Outside Diameter) Fit: Fabricated specifically for rigid stainless steel chimney liners. The OD sizing ensures the tee slides securely inside the female end of your connecting pipes, ensuring all condensation drips down internally rather than leaking from the exterior joints.
Space-Saving 2-Part Design: The versatile two-piece construction allows you to easily maneuver the vertical tee body down tight masonry flues before attaching the horizontal snout through the wall, solving tight-clearance installation headaches.
Commercial-Grade 24-Gauge Construction: As a standard, this tee is built from thick, 24-gauge steel. It will not warp, crush, or degrade under extreme heat or corrosive conditions.
Material: 316L Stainless Steel (Highest corrosion resistance)
Fuel Compatibility: All Fuels (Gas, Oil, Coal, Wood, Pellet)
Standard Thickness: High-Grade 24-Gauge
Custom Thickness Available: 22-Gauge & 18-Gauge (Call 1-877-486-8119 for a custom quote)
Connection Type: OD (Outside Diameter) for Rigid Liner Systems
Available Diameters: 3", 4", 5", 6", 7", 8", 9", 10", 11", 12"
Why should I choose the 316L OD Tee instead of the 304L OD Tee? It entirely depends on what fuel you are burning. If you are burning gas, oil, or coal, you must use 316L stainless steel. The exhausts from these fuels create acidic condensation that will rapidly eat through standard 304 stainless steel. If you are only burning wood, our [304L Stainless Steel 2-Part Tee OD] is a safe and more cost-effective option.
Will this OD tee fit my flexible chimney liner? No. This OD (Outside Diameter) fitting is precision-machined exclusively to slip-fit with rigid stainless steel pipes. If you are looking for a tee to connect to a flexible chimney liner, please view our [316 Stainless Steel 2-Part Flex Tee].
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