Check Valve: 1/4" or 5/16" (inches)
Typically used with water applications, the check valve is handy for preventing water damage to the ozone generator by blocking water from seeping back into the unit. The arrow shows the direction of the ozone flow from the nozzle to water. To ensure no water comes back through the tubes to your unit, please replace any check valves after 6 months of use.
Choose your size:
1/4" - 3688 Ozone Generator
5/16" - MP-Series, SP-Series
(Tubing Not Included)
Please select the diameter of your tubing. Every order will come with 2 check valves + 1 free promotional valve unless otherwise labeled.