Superior Sump® Check Valves & Coupler Products


All of our check valve and coupler products for the Superior Sump® waterproofing system.

Professional Sump Pump Check Valves & Couplers

Superior Sump Check Valve

Superior Sump Check Valve

1 ½“ threaded check valve.

Show Details

Superior Sump 1 1/2” Coupler

Superior Sump 1 1/2” Coupler

Our flexible couplings are manufactured from black PVC.

Show Details

Customer Reviews

Average rating for Nash Distribution is 4.98 stars of 5 stars - based on 30 reviews

My waterproofing company uses all your sump pumps, especially the battery back up sumps in our waterproofing projects. Our clients are very happy with the results! I'll be recommending you to some other guys in my area.

Thomas B - Charleston, SC 29406

I not only get great service and products from Nash, I also get answers when I need help.

Bob R. - Parkersburg, WV 26102