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Which coupling do you need?

A coupling connects the hose to the pump, to another hose or to fixed pipework. The awkward part is that two systems exist side by side that look alike from a distance and do not fit one another. So first check which system you already have.

What to look for

• GEKA or Storz. GEKA is the claw coupling used on garden and work hoses: two lugs that click together. Storz is the half-round bayonet coupling used on fire-service and construction hoses. They do not fit one another; an adapter is needed for that.
• Thread or hose tail. A coupling with a female or male thread screws onto the pump or onto pipework. A coupling with a hose tail slides into the hose and is secured with a hose clip. So decide first which side you are on.
• Female or male thread. This is the most commonly mis-ordered detail. If the thread sits on the outside of the part you are connecting to, you need a coupling with a female thread, and the other way round.
• Size. Thread sizes are given in inches (1", 1¼", 1½", 2"), hose sizes in millimetres. Measure the hose on the inside, not the outside.
• Seal. Check that the rubber ring is present and still supple. A coupling without a ring, or with a hardened one, leaks under pressure — however well it clicks.

Unsure which size or type you need? Send a photo of the connection via contact or call 085 - 210 08 97 — we will work it out together.