Supco ECAP321

Brand: Supco
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Supco ECAP321 PVC Flue Cap

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Supco ECAP321 PVC Flue Cap, Fits 1.5”, 2” and 3” PVC pipe

The patented new flue cap is designed to improve air flow and eliminate excessive moisture and debris that can rust or damage high efficiency gas furnaces, tankless hot water tanks, plumbing or other PVC vented installations.
  • Superior design, function and price to conventional concentric vents
  • Faster and easier to install than double 90° elbows (P-trap)
  • Resistant to heat, cold, precipitation or UV radiation
  • Protects furnace motor and interior from damaging moisture, debris and pests
  • Promotes unrestricted air flow of both Intake and Vent flue, will never freeze up with condensation
  • Precisely and quickly fits 1.5”, 2” and 3” PVC pipe
  • Patent No. 6,978,803
  • Works perfectly in either vertical or horizontal flue pipe installations
  • For use on all PVC vented high efficiency applications. HVAC exhaust and intake, plumbing, Septic tank gas venting,
    • Radon gas venting and high efficiency tankless water heaters
OEM approved by Amana®, Bosch® and Goodman® for use in 90% AFUE heating applications


Flue/Vent Size Fits 1.5”, 2” and 3” PVC pipe
Individual Item Weight 0.4000
Manufacturer Supco
Manufacturer Name Supco
Package/Shipping Weight 0.4



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