This is a valveless version for pressure washers.
Enerpac Interchange - TP3 Series Screw Couplings Coupler
Flat Face Stainless Steel + Viton Nipple, interchangeable with Stucchi (Holmbury) FL.
Plastic Dust Caps & Plugs To Suit Flat Face Couplings - Caps
Plastic Dust Caps & Plugs To Suit Flat Face Couplings - Plugs