Groco Pipe-to-Hose straight connectors are threaded with NPT(tapered) male pipe thread, and are for use with Groco Seacocks, Raw Water Strainers or with any product with tapered female pipe thread. The use of Groco Pipe-to-Hose straight connectorson prodect with NPS(straight) pipe thread only with a generous application of pipe sealant or PTFE thread tape. All critical hose connections should be double clamped at both ends. Ideally, the hose clamp screws should be mounted opposite one another for maximum security. Use the highest quality AWAB hose clamps for longest life and best performance.