2" PVC Schedule 80 Slip Coupling. PVC is Pipe is designed for both above and below ground medium pressure applications. PVC is generally used for both commercial and residential plumbing construction. PVC and its fittings are glued together with special PVC glue that's designed to create a seal that is leak proof and durable. Schedule 80 PVC can withstand pressure as high as 1230 PSI and is ideal for pressure situations that demand more strength and durability than schedule 40 or a class 200 applications. All PVC Schedule 80 pipe is manufactured from a Type I, Grade I Polyvinyl Chloride (PVC) compound. This means that it is generally resistant to most acids, bases, salts, aliphatic solutions, oxidants, and halogens. This 2" PVC Schedule 80 Slip Coupling is designed to quickly and easily connect your Schedule 80 piping systems together. Couplings are one of the only ways to connect two pipes, but if done properly, they connect these pipes with the same quality as if the pipe were one solid piece.