These straight female instant fittings can be used to connect one run of our 1/4" hose to another run of 1/4" hose.  We cannot guarantee these working with other hose other than our own. DevilsOwn instant fittings install easily on the hose without the need for clamps or ferrules—just push the hose into the fitting. It’s so easy, you can install it with one hand. You can also easily remove the tubing just by pressing the release portion of the fitting while pulling the tubing. Everything, then, is completely reusable. The fittings are completely compatible with methanol and will not rot from the inside out.