Non-return valves

Find here all our water and air non-return valves for spas. In order to help you in your research, 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
 28,00€ 
In stock
1.5" water check valve
1.5" water check valve
 41,50€ 
In stock
2" water check valve
2" water check valve
 44,00€ 
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 one-way valve
63 mm one-way valve
 39,00€ 
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
 12,00€ 
In stock
Magic Plastics 1" air check valve
1" air check valve
 19,50€ 
In stock
Waterway 1.5" non-return valve for blower line
1.5" air check valve
 21,00€ 
In stock
Waterway 2" non-return valve for blower line
2" air check valve
 21,00€ 
In stock
One-way ozone check valve
One-way ozone check valve
 15,00€ 
In stock