Quick Connect O-Rings - Buna-N & Viton for QC Sockets

Replacement o-rings for pressure washer quick connect sockets. The o-ring inside a QC socket is what seals against the plug - when a coupler starts weeping or spraying at the joint, this is almost always the part that failed, not the coupler.

Pick your socket size, the material, and how many you want.

Buna-N vs Viton

Buna-N is the standard black o-ring. It handles water, most soaps and general washing at a low cost. Viton (brown) resists heat, bleach, acids and strong chemicals - use it on soft wash rigs, chemical injection lines, hot water machines and anywhere you run harsh mixes. Viton costs more but lasts far longer in chemical service.

• Sizes for 1/8", 1/4", 3/8" and 1/2" QC sockets
• Buna-N and Viton
• Sold each, in 10 packs and in 25 packs
• Keep spares on the truck - they are the most common pressure washer leak

How to replace one

Release pressure, pull the old o-ring out with an o-ring pick, wipe the groove clean, and roll the new ring into place. A drop of silicone grease helps it seat and extends life.