[R134A CHARGING HOSE] The R134a Charging Hose is 19.68inch with 2.75inch Air Conditioning Gauge, R-134a Can to R-12 or R-22 service port connection,1 or 4inch end fits R12, 22, 502 fittings.And the gauge has scale readings for R134, R12, and 22. [BPV31 PIERCING VALVE] BPV31 Piercing Valve ( Not Part Number)for HVAC System, 3-In-1 Tap Piercing Valve for , Fits 3 sizes of tubing: 1 or 4inch, 5 or 16inch and 3 or 8inch. [ADAPTER] The 1 or 4 to 1 or 4 Adapter with valve core, 1 or 4inch Male 5 or 16inch Female Adapter fits for Mini Split System Air Conditioners, HVAC and Refrigeration. [] The replacement part is made from durable material. Colour: blue, copper-colored Material: plastic, metal Package Contents: 1 x R134a hose 1 x BPV31 puncture valve 1 x R134a low-side quick connector 1 x 1 or 4 to 1 or 4 adapter 1 x 1 or 4 male 5 or 16 female adapter Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is 1-3cm.