This set includes 1pcs R22 v-alve, 1pcs R410 v-alve and 1pcs 1/4 SAE adapter. Made of quality copper material, thickened v-alve body, with fine durability. Perfect for air conditioner refrigerant adding use. You can have a try.Features:This set includes 1pcs R22 v-alve, 1pcs R410 v-alve and 1pcs 1/4 SAE adapter.Made of quality copper material, thickened v-alve body, with fine durability.Blue v-alve with 1/4 SAE interface, which is suitable for works with R22 air conditioner.Red v-alve with 5/16 SAE interface, which is suitable for works with R410 air conditioner.The adapter is used to transform hose thread from 5/16 SAE to 1/4 SAE.Specifications:Name: Safety Valves SetMaterial: copperItem size: 70 * 25 * 25mm / 2.76 * 0.98 * 0.98inItem weight: 152g / 5.36ouncePackage size: 143 * 95 * 42mm / 5.63 * 3.74 * 1.65inPackage weight: 178g / 6.28ouncePacking List:2 * Safety Valves1 * Adapter