Non-return valves

Find here all our non-return air and water valves for spas. In order to help you in your search, you will find below the inside diameter of the different female connections of the check valves. These dimensions also represent the outside diameters of the male connections and the pipe sizes, of course.

  • 1/2 inch: 21 mm
  • 3/4 inch: 27 mm
  • 1 inch: 33 mm
  • 1.5 inches: 48 mm
  • 2 inches: 60 mm
  • 2.5 inches: 73 mm

1" water check valve
1" water check valve
 33,00€ 
In stock
1.5" water check valve
1.5" water check valve
 48,00€ 
In stock
2" water check valve
2" water check valve
 60,00€ 
In stock
Waterway 2" bypass release valve
2" bypass release valve
 18,00€ 
In stock
2" check valve with window
2" check valve with window
 46,00€ 
In stock
63 mm water check valve
63 mm water check valve
 60,00€ 
In stock
Magic Plastics 1/2" air check valve
1/2" air check valve
 18,50€ 
In stock
Balboa 32 mm air check valve
32 mm air check valve
 12,90€ 
In stock
Waterway 1.5" non-return valve for blower line
1.5" air check valve
 21,00€ 
In stock
Magic Plastics 1" air check valve
1" air check valve
 19,50€ 
In stock
Waterway 2" non-return valve for blower line
2" air check valve
 21,00€ 
In stock
Ozone-resistant one-way valve
Ozone check valve
 15,30€ 
In stock
Balboa/HydroAir 32 mm air check valve for Genesis blowers
32 mm air check valve
 25,80€ 
In stock
CMP air intake valve
CMP air intake valve
 15,90€ 
In stock