Quick view MarMac Construction Products 24" MarMac Standard PolySeal Coupler 2467RC Compare $192.06 MarMac PolySeal is a flexible, high-strength pipe coupling that permanently seals and restrains corrugated plastic pipe. PolySeal Couplers are over-engineered, reinforced external joint seals designed to connect HDPE / HDPP corrugated pipe, while... Add to Cart Add to Cart Add to Wish List Add to My Wish List Create New Wish List