It's better to not have and not need it, than suffering the hassle and expense a burst pipe can cause.
The clamp fits pipe sizes 10mm, 15mm and 22mm (3/8in, 1/2in & 3/4in)
The tool is so easy to use, see for yourself by watching the video below
Advice for thawing or leaking pipes
Damage to pipes occurs when they become frozen, but you’re only going to notice when the water in the pipe thaws. So, if a pipe is frozen isolate the affected area by closing your stop tap.
Turn off your water supply
Turn off the main stop tap. You should find this under the kitchen sink or where the pipe enters your home such as in your garage or cellar. If you have a cold water tank, turn off the stopcock (this is usually found in the attic or loft).
If you spot a leak having isolated the affected pipe by closing the stop tap, then call a plumber. If you want to find an approved plumber, use the Chartered Institute of Plumbing and Heating Engineering’s website.