This eccentric increaser allows to increase SW (single wall) Innoflue 3" to 4". Suitable for vertical or horizontal installation. (For horizontal runs, install only with eccentric portion at the very top)
Innoflue SW (Single Wall) is the only polymer vent system on the market listed to UL 1738
Accepted and approved by over 50 North Amercian manufacturers of boilers, water heaters and furnaces
Suitable for natural gas, propane and fuel-oil condensing and non-condensing (flue temp. below 248°F) appliances
All parts (pipe, fittings, etc. - both black and grey) are UV resistant and suitable for indoor or outdoor installation
Requires no primer/glue and does not leach chloride like PVC & CPVC
Costs less and is faster and easier to install than stainless steel venting, no special tools needed, zero clearance to combustibles
Industry-leading 2mm wall thickness
Built-in gasket allows for adhesive-free installation which can be adjusted at any time
May be installed through a wall, chimney, chase or between joists
Lightweight, requires minimal support
Made in the USA from environmentally-friendly PolyPropylene (PP).
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