Campbell Brady Valve by Campbell Manufacturing.

• Made from non-conductive, non-corrosive delrin; can be installed horizontally or vertically
• For use in water well, irrigation, and other systems where backflow prevention and loss of prime are required
• Line Check Valve (SLC/LC series): with or without spring, 3/4" to 1-1/2"
• Foot Valve (SFV/FV series): with or without spring, 3/4" to 1-1/2"
• Strainer (SS series): for use with FV foot valves
• Sump Pump Check Valve (BSC): durable ABS thermoplastic, Buna-N flapper, 25 psi max working pressure
• Not recommended for gasoline systems or pressures above 200 psi