Choosing exactly the right hose and fittings for your next build has never been easier – Earl's Performance's simple, easy-to-use Plumbing Selector does it for you. Start by choosing the fluid the system will contain – pump gas, race gas, methanol, Diesel, transmission fluid, motor oil, power-steering fluid, coolant, even E85. Then pick the assembly method – crimp-on, twist-on, push-on, or barb. Now just click the "see results" tab, and a list of all the applicable products appears to give you every possible option. (The most compatible choices will pop up first.) Click on "hose type" and you'll be whisked the product page, where you can pick from numerous sizes, materials, lengths, fluids, and wall thicknesses. It's the same for hose ends – just click to find the exact products perfect for your application, add them to your cart, and you're on your way.