This is a 3/4" Tank Adapter with a 1/2", 3/4" or 1" barbed hose tail at the other end.

It can be used with any tank or drum to provide a connection for a hose pipe.

Please note that the  measurement refers to the INTERNAL Diameter of the hose pipe and the EXTERNAL Diameter of the hose tail.

This is different to solid MDPE or alkathene pipe where it is the EXTERNAL measurement of the pipe that is used because it slots into the fitting rather than fitting over it.

FITTING

Firstly, you will need to drill a hole (25 / 27 mm diameter) where you want to locate the item.

Important.....You must be able to get your hand into the tank or drum somewhere close to enable tightening of the back nut. You will also need to make sure that the area where the hole is being drilled is reasonably flat.

You will not get a good watertight seal on a heavily curved surface (a slight contour will be OK).

Once you have drilled the hole, remove the back nut and rubber sealing washer from the adapter and push the threaded section through the hole.

Then push the rubber sealing washer back over the threaded section and finish by screwing home the back nut as tight as you can by hand. Do not overtighten.