[R134A CHARGING HOSE] The R134a Charging Hose is 19.68 inch with a 2.75 inch Conditioning Gauge, designed for R-134a can to R-12/R-22 service port connection. The 1/4 inch end fits R12, 22, and 502 fittings. The gauge includes scale readings for R134, R12, and 22. [BPV31 PIERCING VALVE] BPV31 Piercing Valve for HVAC systems, a 3-in-1 line tap piercing valve that fits three 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 to 5/16 inch Female adapter, compatible with mini split system conditioners, HVAC, and refrigeration systems. [PREMIUM QUALITY] This replacement part is constructed from durable, high-quality materials. Color: Blue, Copper-colored Material: Plastic, Metal Package Contents: 1 x R134a hose 1 x BPV31 piercing valve 1 x R134a low-side quick connector 1 x 1/4 to 1/4 adapter 1 x 1/4 inch Male to 5/16 inch Female adapter Note: Only the items listed above are included. Other products are not included. Note: Light and display settings may cause slight variations in the color of the item compared to the actual product. Measurement may vary by +/- 1-3 cm.