ZENY Diagnostic A/C Manifold Gauge Set R22 R134a R410a Refrigeration Kit Brass Auto Serivice Kit 4FT w/Case, 1/4" SAE Fittings (#1) Warm reminder: 1) Designed to meet 1/4" Standard SAE requirement for refrigerant permutation. 2) It's Celcius scale shown, NOT Fahrenheit scale. 3)Units are metric measurement **4) Numbers on the panel are not large enough, please wear glassed or take a closer look to read **5) Any questions or doubts of item or replacement, please contact seller in the first time for solution, and we'll do our best to help. Each hoses is aprox 4ft ( 48 inches) each with 1/4" SAE fitting; Working pressure 500psi, Burst pressure 2500psi Aluminum manifold body, Built in viewing glass Diaphragm valves with swivel seals for more positive seal and less wear, Pressure in PSI measurement Durable rubber gauge cover for added support and protection, Comes with back hook for hanging the manifold gauge in place