Solid Forged Brass Bar: Long-lasting and durable with proven face seal valves. New Universal Gauges: Easy to read dial faces show R-134a temperatures in degrees Fahrenheit, plus pressures in psi and kPa. Flexible Holster: Protects your manifold during use and storage. Sight Glass: Model 40135 shows movement of refrigerant through the manifold. All manifolds are covered by a 30-day Money Back Guarantee and a one year "No Hassle Mfg. Warranty". Hoses: R-134a low permeation hoses with field service couplers on the high and low side hoses yellow hose is 1/4" FFL x 1/2" Acme with Quick Seal Fitting. Includes: R-134a Manifold Gauge Set with three 72" color-coded hoses and automotive field service couplers.