3/8" Pressure Washer Quick Connect O-Rings–Buna-N Rubber Seal for M22 Fittings – Leak-Proof Replacement for Karcher, Craftsman, Husqvarna –Tool-Free Fix for Spray Gun, Hose, Wand Connections 100/Pack

Upgrade Your Pressure Washing Experience with Reliable Sealing PowerIf you’ve ever been mid-task and noticed water spraying from your coupler instead of your nozzle, you know how frustrating a worn-out O-ring can be. That’s where our 100-pack of 3/8" pressure washer quick coupler O-rings comes in. Designed for performance and durability, these seals are the unsung heroes of your cleaning arsenal—quietly ensuring every connection stays tight and leak-free.From Driveways to Job Sites – Any Job, Any MachineWhether you're washing your driveway, detailing your car, or watering your garden, these O-rings keep the water flowing where it belongs. They’re built for real-world use: from residential chores to professional-grade jobs. The Buna-N material holds up under pressure, resists heat up to 400°F, and stands up to water, oil, and mild chemicals without breaking down.What makes this set stand out is the combination of precision and practicality. Each O-ring is molded to exact specifications—1/2" ID x 0.1" thick—to fit snugly into 3/8" quick couplers. That means no guesswork, no trial and error, just a perfect fit the first time.And with 100 pieces in every pack, you’ll have plenty on hand for multiple machines, future replacements, or even sharing with a fellow DIYer. The included reusable plastic storage box keeps them organized and protected, so they’re always ready when you are.From the backyard to the job site, trust these O-rings to keep your equipment running smoothly. Upgrade your setup today and feel the difference a quality seal can make.

• Works with All Major Brands – No Guesswork：Forget compatibility charts. These o-rings fit Karcher K-Series, Craftsman, Husqvarna, Simpson, Generac, and most 3/8" quick-connect fittings. If your pressure washer has an M22 coupler, you’re covered. (The 3/8" size refers to the coupler, not the o-ring itself.)
• Finally, a Leak-Free Seal You Can Count On：Say goodbye to frustrating drips and pressure drops. These 1/2" ID x 0.1" thick o-rings are precision-sized for 3/8" M22 quick couplers—the industry standard for most pressure washers. They create a watertight seal between your hose, wand, and spray gun, so you can blast away dirt with full force every time.
• 100-Pack: Never Run Out Mid-Job：Tired of scrambling for replacements? This bulk pack keeps you stocked for years. Whether you’re a weekend warrior or a pro cleaning crew, you’ll always have a fresh o-ring ready. Perfect for multi-tool households or sharing with neighbors.
• Tough Enough for 400°F & High Pressure：Made from genuine Buna-N (Nitrile) rubber, these seals withstand extreme heat (up to 400°F) and constant abuse. No cracking, no melting—just reliable performance in gas or electric pressure washers, even during long cleaning sessions.
• Install in Seconds, No Tools Required：You don’t need to be a mechanic. Just pop out the old worn ring, slide in a new one, and reconnect. Restore strong water flow instantly—no leaks, no downtime. More time cleaning, less time fixing.