Description
Balboa 40mm inline Air Check Valve. Unionized with 1/4lb spring and 40mm pipe fitting. Used in the plumbing for a blower. Replaces older GG Industries 42150 and others. Old valve may need to be cut out and replaced with this one.
NOTE: DO NOT rely solely upon a Check Valve to protect against water backflow or water leakage in an air blower installation. Install a Double Acting Air Lock Loop System (Hartford loop).