Part number 1050C20 is a Flo Control 1.5" slip x 2" spigot clear PVC air check valve designed to prevent water from flowing back into the air blower system.
As a standard and highly versatile plumbing component, this part is used by a wide variety of spa and pool manufacturers in their air systems.
These manufacturers include:
Cal Spas: Uses check valves in their systems, and the 1050C20 is a compatible replacement for some of their plumbing assemblies.
Caldera Spas: The 1050C20 is a current alternative to the discontinued Caldera Spa blower check valve, part number 022001.
Hydro-Air: This part is cross-referenced with the Hydro-Air part number 11-3000.
Waterway Plastics: Although they have their own check valves (e.g., 600-8140), the Flo Control 1050C20 is a direct replacement for various Waterway air systems.
Magic Plastics: This manufacturer produces an equivalent check valve for use in pool and spa applications, indicating widespread industry compatibility for this size and type of valve.
NDS: NDS also manufactures this specific 1.5" x 2" check valve for use in irrigation, pool, and spa applications.
