Replacement sealing ring for quick couplings — black NBR What it does Acts as the sealing element for quick couplings to prevent leaks and ensure secure connections. Designed for routine replacement to restore proper sealing performance. Why customers need it Restores lost sealing efficiency quickly when a coupling starts to leak or wear. Minimizes downtime by being simple to swap during maintenance. Keeps existing couplings functioning without needing full replacement. Key features Compatibility: suitable for use with quick couplings (universal fit for standard coupling assemblies). Material: made from black NBR (nitrile rubber) for reliable elastic sealing properties. Serviceability: easy to replace during routine maintenance or field repairs. Benefits Fast maintenance: quick installation reduces repair time and service interruptions. Cost effective: replaces only the worn seal instead of the entire coupling assembly. Consistent performance: maintains proper sealing function when properly installed. Typical applications Workshop and shop-floor maintenance: replace worn seals on pneumatic tool couplings to stop air leaks. Equipment service and field repairs: restore sealing on quick couplings for hydraulic or fluid-transfer lines during routine maintenance. Irrigation and utility connections: swap damaged seals on garden or industrial quick connectors to prevent water loss. Installation notes Designed for straightforward replacement; follow the coupling manufacturer’s instructions for removal and installation to ensure correct seating and sealing. Inspect mating surfaces and coupling components for damage before installing a new seal. Material specification NBR (nitrile rubber), black. If you need a simple, serviceable seal that fits standard quick couplings and is straightforward to replace, this black NBR sealing ring provides a direct, practical solution.