Simplifies the emptying of dirt that collects in the bottom of our particle filters due to. the cyclone effect. With this valve you can easily remove larger particles from the bottom of the filter container even when the filters are pressurized.
Fits all our particle filters of the models NW25, Duo-UV, Trio-UV and NW32.
Comes complete with integrated gasket and replaces the drainage screw that is otherwise standard in the bottom of the particle filters. Note: should only be screwed in by hand.