Polylok’s 24″ Corrugated Pipe to 24 24″ Corrugated Pipe adapter accepts 24″ 24″ corrugated pipe. Our adapter rings are ideal for retrofitting existing septic tanks, and can be secured with ease. Our adapter rings is made of virgin high density polyethylene. Installation Instructions: Step 1: Prime both mating surfaces with PVC primer. Apply primer to the inside wall of the 24″ corrugated pipe and on the opposing mating surface on the outside of the PL-24IPA adapter. Step 2: Cement both mating surfaces generously with medium body PVC cement. Apply cement to the inside wall of the corrugated pipe and on the opposing mating surface on the outside of the PL-24IPA adapter. Step: 3 Place the PL-24IPA adapter into the IPEX pipe while the PVC cement is still wet. Give the adapter a quarter turn and hold it in place for a few moments to set it in place. Repeat steps 1-3 when attaching a second piece of 24″ corrugated pipe to the Polylok PL-24IPA adapter.