This 25 foot solution hose is made by Sandia and meant to accompany their 25 foot vacuum hose. However, it can be used on other carpet machines that takes a 1/4" solution hose. The quick connects are female on one end, male on the other.
If you're looking for the combined vacuum-solution hose assembly take a look at our complete list of carpet extractor hoses. We have even put a package deal together of Sandia accessories, which is a carpet extractor hose & wand package.