I have a decent Dunlop foot pump, it was however fitted with a really annoying contraption to connect to the tyre valve that ended up leaking more air than it put in. This connector was a little tricky to fit onto the existing hose because the diameter is larger than most footpump hoses. However if you put the hose of your pump into boiling water for a few seconds it is the sufficiently flexible to stretch over this connector. Once fitted this works like a dream! Easy to fit onto the tyre valve and quick to remove once the desired pressure is reached with virtually no leakage. I am very impressed with the quality of this product, very solid, good engineering!