3"/5" x 24" (2ft) long Innoflue Concentric vent pipe. 24" is the effective length, actual (overall) length is 26.5".
- Innoflue Concentric is the only polymer vent system on the market listed to UL 1738;
- Incorporates flue exhaust and air intake into a single product - requires less space and less wall/roof penetrations;
- 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;
- 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;
- May be installed through a wall, inside a masonry chimney, sheetrock chase or between floor joists;
- Lightweight, requires minimal support;
- Made in the USA from environmentally-friendly PolyPropylene (PP).