Our male coupler is designed for use with our hand pumps. This coupler has a barbed end for attaching to vinyl tubing. Used with our hand pumps, this barbed-end connector fits our tubing/hose (sold separately). Push in coupler to attach the pump hose to the female coupler on a cylinder.
If you are looking for a quarter inch coupler to use with another generic pump, you’ll have to look elsewhere, apologies. Our pumps use a 3/16″ ID coupler.