Prevost Industrial S1 Coupler Sizes:3/8" Male If you're building your own

If you're building your own custom setup

Outlet = 1/4" (Quick Disconnect) QD Coupler:  This 1/4" female QD accepts a 1/4" male plug

You'll want to layout your pressure washer and mark the holes with a sharpie

Connect Two Bucket Dollies

Use as little pressure on the pad as you can

Prevost Industrial S1 Coupler Sizes:3/8" Male If you're building your ownDescription The Story There is no other way to put this, Prevost Couplers are quite simply the finest in the world. These are not cheap, but I think they're worth every penny. It's a bit hard to explain how these work, but they have a press button soft release. Check the video above for a demonstration in operation. There is nothing else like these.