The drone does not do the work. The drone carries the nozzle to height. The ground system does the work. A set of 1/4" quick-connect couplers, a socket, and a plug — the small brass and stainless parts that join a high-pressure line together and that are the first things to be lost, dropped, or worn out on site. Kept as a set in the van, a damaged coupling costs a minute instead of a day. Key benefits Downtime insurance. A single failed coupling stops a whole crew. The set turns that into a one-minute swap. Standard 1/4" interface. Matches the quick-connect interface used across WasherDrone lances, nozzles, and hoses. Full-pressure rated. 250 bar (3,625 PSI) maximum working pressure — not a garden-duty fitting set. Corrosion-resistant. Brass and stainless construction, suited to chemical-injected and hard-water duty. Tool-free connection. Push and lock. No threading, no sealant, no wrench. One SKU, not five. Ordered and stocked as a single line item. How it works Quick-connect fittings join a high-pressure line without threading: a plug pushes into a socket and a sprung collar locks it. The set covers the standard combinations needed to terminate a hose, adapt a threaded outlet, and add or remove a tool from the line. Identify: Match the fitting to the connection you are replacing — socket, plug, or threaded coupler. Fit: Seat the fitting fully and confirm the collar has sprung back to the locked position. Test: Bring the line to working pressure and check for leakage before use. Specifications Set contents Quick-connect couplers 2 × (thread standard TBC) Quick-release coupling 1 × 1/4" socket (female) Quick-release plug 1 × 1/4" plug (male, threaded end TBC) Rating Interface 1/4" quick connect Max. working pressure 250 bar (3,625 PSI) Max. temperature TBC Materials & supply Materials Brass and stainless steel (grades TBC) Seals TBC Country of origin China HS code TBC — pending customs classification What’s included 2 × quick-connect coupler 1 × 1/4" quick-release coupling (socket) 1 × 1/4" quick-release plug Before you deploy Confirm the thread before ordering. The threaded ends on the couplers follow a specific standard. Check the connection on your equipment against the specification above, or ask us before ordering. Seals are consumable. O-rings harden and split with chemical exposure and UV. Inspect at each fitting and replace the seal rather than the whole coupling where possible. Lock before pressurising. A partially engaged quick connect separates under pressure. Confirm the collar has sprung fully back. Not a repair of a rated assembly. These are replacement fittings for like-for-like restoration of an existing line. They are not intended for building a new pressure assembly to a different specification. Frequently asked questions What is in the set?Two quick-connect couplers, one 1/4" quick-release socket, and one 1/4" quick-release plug. What pressure are the fittings rated for?250 bar (3,625 PSI) maximum working pressure. Will these fit my hose?They use the standard 1/4" quick-connect interface. The threaded ends follow a specific standard — check the specification against your equipment, or ask us before ordering. Are the seals replaceable?Yes. O-rings are the usual wear point and should be inspected regularly, particularly where chemical injection is used. Why buy these as a set?A single failed coupling stops the whole operation, and the individual parts are the ones most often lost on site. A set kept on the vehicle turns a lost day into a one-minute swap. Ordering & identification SKU WD-L3-QCF-STD HS code TBC Country of origin China Shipping and customs duties are not included.
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