[R134A CHARGING HOSE] The R137a Charging Hose is 1968 inch with 275 inch Conditioning Gauge, R-134a Can to R-12/R-22 service port connection, 1/4 inch end fits R12, 22, 502 fittings. The gauge has scale readings for R134, R12, and 22. [BPV31 PIERCING VALVE] BPV31 Piercing Valve for HVAC System, 3-in-1 Line Tap Piercing Valve, fits 3 sizes of tubing: 1/4 inch, 5/16 inch, and 3/8 inch. [ADAPTER] The 1/4 to 1/4 Adapter with valve core, 1/4 inch Male 5/16 inch Female Adapter fits Mini Split System Conditioners, HVAC and Refrigeration. [PREMIUM QUALITY] The replacement part is made from durable . Color: blue, copper-colored. Material: plastic, metal. Package Contents: 1 * R134a inflation hose 1 * BPV31 puncture valve 1 * R134a low-side quick connector 1 * 1/4 to 1/4 adapter 1 * 1/4 male 5/16 female adapter Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3 cm.