3/8" EPDM Coupler O-Rings - 100 Pack

Reliable Sealing. Everyday Durability. Built for Cold Water Pressure Systems. The 3/8" EPDM Coupler O-Rings – 100 Pack provides dependable, long-lasting sealing for your pressure washer’s quick connect fittings. Designed from high-quality EPDM (Ethylene Propylene Diene Monomer) rubber, these O-rings offer superior resistance to water, abrasion, and wear—ensuring leak-free connections and consistent pressure performance during every wash. Perfect for replacing worn or damaged seals, this bulk 100-pack is ideal for professional cleaners, service technicians, and homeowners who maintain multiple machines or accessories. Each O-ring fits standard 3/8" quick connect couplers, preventing water leaks and preserving system efficiency for cold-water pressure washer setups. Key Features 3/8" Size: Fits standard 3/8" quick connect couplers and fittings. EPDM Material: Durable and resistant to cold water, UV, and environmental wear. Cold Water Rated: Ideal for residential and commercial cold water pressure systems. 100-Pack Value: Convenient quantity for bulk replacements and long-term maintenance. Leak-Free Seal: Prevents drips and pressure loss for smooth operation. Quick Connect Compatible: Works with most 3/8" hoses, wands, and accessories for pressure washers. Durable, Water-Resistant EPDM Design EPDM rubber is known for its excellent sealing ability and long-lasting elasticity under pressure. These O-rings resist cracking, hardening, and shrinking—common issues in water-exposed applications. Designed specifically for cold water systems, they provide reliable sealing in quick connect fittings without degrading from temperature fluctuations or outdoor use. Whether you’re a professional contractor or a weekend DIYer, this 100-pack ensures you always have the right replacement O-ring on hand for leak-free connections and maximum efficiency. Ideal Applications Cold water pressure washer hoses and couplers Spray gun and wand quick connects Surface cleaner and nozzle adapters Commercial cleaning setups and maintenance Home and automotive power washing systems Specifications Size: 3/8" Material: EPDM (Ethylene Propylene Diene Monomer) Temperature Rating: Cold water rated Pressure Rating: Compatible with standard cold-water pressure systems Fitting Type: Quick connect Pack Quantity: 100 Keep your pressure washer running at peak performance with the 3/8" EPDM Coupler O-Rings – 100 Pack. Made from high-quality EPDM rubber for superior sealing and long-term durability, these O-rings prevent leaks, maintain consistent pressure, and fit all standard 3/8" quick connect couplers. Perfect for cold-water cleaning systems in both commercial and residential use. Stay sealed. Stay efficient. The 3/8" EPDM Coupler O-Rings – 100 Pack delivers leak-free performance you can trust.