Koolance reusable constant tension spring hose clamps for connecting 19mm (3/4in) OD tubing to barbed fittings.
These hose clamps greatly simplify the use of normal fittings.
They can be clamped by pressing with the fingers. It is recommended to use pliers to make it easier.
You press the two ends towards each other, this will make the hose clamp larger. Continue to push until the clamp is large enough for the hose. This will be a lot easier with the help of pliers, as it can require quite a lot of force. The hose should just be able to pass through. If this is difficult, you can slightly wet the hose so that the hose clamp slides over it more easily.
Even after frequent opening and closing, the clamping force is still retained!
Compatible with hoses from 17 to 19mm OD (1/2 "Hoses).