TL;DR
A quick-connect coupler is the spring-loaded socket-and-plug pair that lets pressure washer hoses, guns, wands, and nozzle tips snap together and apart in seconds without threading. Standard sizes are 1/4-inch for nozzle tips and 3/8-inch for hose-to-pump connections, in brass, steel, or stainless rated to the machine's pressure.
What it means
A quick-connect coupler is the spring-loaded socket-and-plug pair that lets pressure washer hoses, guns, wands, and nozzle tips snap together and apart in seconds without threading. Standard sizes are 1/4-inch for nozzle tips and 3/8-inch for hose-to-pump connections, in brass, steel, or stainless rated to the machine's pressure. Worn O-rings inside the sockets are the usual culprit when a rig drips at the joints, and they cost pennies to replace.
Where it sits in the glossary
Quick-connect coupler is part of the Trade jargon group inside the ProFix Directory glossary. Browse every term in this category from the glossary index.
Why Ohio homeowners should know it
This is a term Ohio homeowners encounter when reading contractor quotes, hiring paperwork, or inspection reports. Understanding it well enough to ask one good follow-up question is usually all the protection a homeowner needs.
ProFix Directory keeps definitions short on the index page and saves the longer context — Ohio-specific rules, where the term comes from, and which ProFix tools touch it — for these per-term pages so the term is easy to cite and easy to share.
ProFix tools that touch this term
See also
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