Discontinued 4"/6" x 87 Innoflue Concentric 90 Elbow

The ICEL4687 from Centrotherm is a 90-degree elbow for 4”/6” Innoflue concentric vent tubing. This item connects two Innoflue concentric tubing of the same size at a 90-degree angle.


  • 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).
Product Type
Vent Type

4"/6" x 87 Innoflue Concentric 90 Elbow

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  • Brand: Centrotherm
  • Model: ICEL4687
  • MPN: ICEL4687
  • Availability: Discontinued
  • $ 85.70

Tags: Venting, Heating, Heating Supplies, Condensing Boilers, Heating and Cooling