[R134A CHARGING HOSE] The R134a Charging Hose is 19.68inch with 2.75inch Conditioning Gauge, R-134a Can to R-12/R-22 service port connection,1/4inch end fits R12, 22, 502 fittings.And the gauge has scale readings for R134, R12, & 22. [BPV31 PIERCING VALVE] BPV31 Piercing Valve ( Not Part Number)for HVAC System, 3-In-1 Line Tap Piercing Valve for , Fits 3 sizes of tubing: 1/4inch, 5/16inch and 3/8inch. [ADAPTER] The 1/4 to 1/4 Adapter with valve core, 1/4inch Male 5/16inch Female Adapter fits for Mini Split System Conditioners, HVAC and Refrigeration. [PREMIUM QUALITY] The replacement part is made from durable high quality material. Colour: blue, copper-colored Material: plastic, metal Package Contents: 1 * R134a 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