10 Pack Buna O Ring Seals for 3/8 Pressure Washer Quick Coupler Connectors Keep your pressure washer connections leak and performing at their with this pack of replacement Buna O ring seals. Designed for 3/8 quick coupler and coupling connectors, these seals restore proper sealing where wear or damage has caused leaks or loss of pressure. Key benefits Restores a tight seal to quick coupler connections to prevent leaks and maintain pressure. Extends the service life of hoses, wands, and couplers by replacing worn or damaged O rings. Simple, low cost maintenance item that reduces downtime and avoids costly repairs. Features and specifications Quantity: 10 O ring seals per pack. Material: Buna rubber for reliable elasticity and long service life. Size: Designed for 3/8 quick coupler and coupling connectors as used on pressure washers. Function: Replacement sealing element for quick disconnect fittings to maintain water tightness and pressure. Why you need these O rings Quick coupler seals wear with repeated connection cycles and exposure to cleaning solutions. Replacing them restores proper sealing and pressure. Keeping spare O rings on hand enables fast repairs in the field or at home, so equipment stays ready when needed. Typical use scenarios worn seals on a pressure washer wand quick coupler during routine maintenance to eliminate leaks at the connection. Carry spares when servicing multiple machines on a job site to quickly swap out damaged O rings and continue work with minimal interruption. Fit into hose and accessory kits for cleaning patios, decks, vehicles, and outdoor equipment that use 3/8 quick couplers. Installation and care Simple to install by removing the old seal and seating the replacement in the groove. No special tools required for most fittings. Inspect coupler surfaces for nicks or debris before installation to ensure a good seal. Keep spare seals clean and stored in a dry place until needed. Package contents Ten Buna O ring seals sized for 3/8 pressure washer quick coupler coupling connectors.