Marketing InformationOatey® 131 Series adjustable slab drains are designed for use with tile or marble showers where a shower pan liner is not required. Made of durable PVC or ABS plastic, the drain body solvent welds over 2 in or inside 3 in SCH 40 DWV pipe and features a 2 in IPS threaded strainer barrel for easy height adjustment. Available with round or square strainers, the round drain barrel accommodates 4-1/4 in. Universal snap-tite strainers in a variety of designer finishes. Oatey® products have earned the trust of plumbing professionals for over 100 years.