Save on this 3/4" Schedule 40 PVC Ball Valve. PVC is designed for above or below ground. PVC can be used for both commercial and residential plumbing construction. PVC and its fittings are often glued together with special glue that's designed to create a seal that is leakproof and durable like the pipe. This Valve however uses 3/4" Female NPT threads. Because PVC is fairly rigid, it is an excellent pipe choice for just about any application including water, air, and some DWV categories. This PVC 3/4" Ball Valve is ideal for isolating areas in the water system and controlling the water flow.