Mainline ML-4TCA 4″ ABS Fullport Top Check Backwater Valve


$154.99

The Mainline ML-4TCA 4″ ABS Full-Port Top Check Backwater Valve has 4″ ABS hub connections. This valve is typically installed in homes or buildings that have basements, cellars, crawl spaces or area that are accessible for servicing.


The Mainline ML-4TCA 4″ ABS Full-Port Top Check Backwater Valve has 4″ ABS hub connections. This valve is typically installed in homes or buildings that have basements, cellars, crawl spaces or area that are accessible for servicing. It has a Top suspended gate which stays forever clean.

Mainline Top-Check valve features a top suspended gate which stays forever clean. The clear lid & cleanout provide ease for visible inspections and sewer rodding. Manual sewer shut off provides owner option to manually close their valve.

Features and benefits

Top-Check valve features a top suspended gate which stays forever clean

“Normally-open design” allows free circulation of air through the Plumbing System

“Clear Lid” easy visual inspection of unit

“Built-in main-sewer cleanout”   allows auguring of sewer

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