The CAS flow valve design prevents water getting in during tail stands and wave jumping. The aluminum, rubber, and injection molded construction of the Blowsion one-way valve assembly along w/ the recessed internal mounting results in a bulletproof set-up

Unlike scupper valves that mount on the exposed exterior of your ski, the Blowsion one way valve kits install “into” the rear 1/4 of your PWC end caps.

Versiplug Max - The rugged solution for leaky flap scuppers Created for freestyle to create a reliable fix to scupper setups that had leaking issues when not moving. For Stand Up Watercraft w/ 2.025” ID Scupper Tube.

Ski Clinic drain valve has an aluminum flap, that does not bend or warp, greatly improving the seal. For Freestyle use only.

Wamiltons scupper is the fastest way to get the water out of the ski's engine compartment. Water goes out faster than it can go in.