Flair-It 3/8" PEX Straight Stop Valve. It is suitable for PEX or polybutylene pipes. This directional valve features an arrow indicator on the side for easy flow identification. CSA, IAPMO certified, and NSF approved, it ensures reliability and safety. Suitable for hot or cold water, it serves as an in-line valve with PEX connections on both ends. Bar coded for easy identification.