This custom machined venturi is designed for use with a Sicce PSK-1000 pinwheel pump. It allows the stock pinwheel to draw about 800 lph of air at a 7" water depth. This is an excellent match for our CS1 DIY cone skimmer kit.
The venturi friction fits firmly onto the intake nozzle of the Sicce volute. No glue is required.
The air intake fitting is a 1/8" NPT x 3/8" hose barb.