Swing Swing Check Valve - RSK 920 | AWS AWS Swing Check Valve - RSK 920 | AWS The Swing Check Valve - RSK 920 | AWS is a versatile valve designed for a wide range of applications, from traditional pool systems to handling aggressive chemicals. It is available in materials such as PVC-U, PVC-C, PP-H, and PVDF, ensuring compatibility and durability in various environments. View