R134A CHARGING HOSE: The R134a charging hose is 19.68 inches long with a 2.75-inch conditioning gauge. Connects R-134a can to R-12/R-22 service port. 1/4 inch end fits R12, R22, and R502 fittings. Gauge includes scale readings for R134a, R12, and R22. BPV31 PIERCING VALVE: BPV31 piercing valve for HVAC systems. 3-in-1 line tap piercing valve fits three sizes of tubing: 1/4 inch, 5/16 inch, and 3/8 inch. ADAPTER: 1/4 inch to 1/4 inch adapter with valve core. Includes 1/4 inch male to 5/16 inch female adapter, compatible with mini split system conditioners, HVAC, and refrigeration systems. PREMIUM QUALITY: Replacement parts constructed from durable, high-quality materials. COLOR: Blue, copper-colored MATERIAL: Plastic, metal PACKAGE CONTENTS: 1 x R134a inflation hose 1 x BPV31 piercing valve 1 x R134a low-side quick connector 1 x 1/4 inch to 1/4 inch adapter 1 x 1/4 inch male to 5/16 inch female adapter Only the above package contents are included; other products are not included. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.