Fernco 6" X 4" Concrete to PVC FLEXIBLE COUPLING (GRAY)
The Fernco 6" x 4" Concrete to PVC Flexible Coupling (GRAY) is the ideal solution for transitioning between 6-inch concrete pipe and 4-inch PVC pipe in drain, waste, and vent (DWV) systems. Built with flexible, UV-resistant elastomeric PVC and stainless steel clamps, this coupling delivers a watertight, corrosion-resistant seal that withstands ground movement and vibration.
Perfect for underground or above-ground applications, this white coupling is code-compliant and easy to install—no special tools required. Designed for durability and versatility, it's trusted by plumbers and contractors for both residential and commercial use.
Key Features:
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Connects 6" concrete to 4" PVC pipes
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Durable white flexible PVC resists corrosion and UV damage
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Stainless steel clamps for a strong, secure fit
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Leak-proof seal absorbs vibration and movement
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Easy, tool-free installation
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Meets ASTM D5926, C1173 & CSA B602 standards
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$19.99
$19.99
$19.99
$19.99
$19.99
$19.99
$19.99
$19.99
About Radon
What is Radon?
Radon is a radioactive gas formed from the decay of uranium in soil and rock.
It moves from the ground into homes in enclosed spaces like basements.
Health Risks Associated with Radon
Radon is the second leading cause of lung cancer after smoking.
Radon exposure is typically asymptomatic, meaning there are no immediate signs of illness.
How to Mitigate Radon Exposure
After identifying radon issues with accurate testing, you need to install mitigation systems.
If you need help identifying the best system or risks, we'll help you for free.