BPV-31 piercing valves for air conditioning refrigerators - compatible with 1/4", 5/16", 3/8" hoses, replaces BPV31, BPV31D, GPV14, GPV31, GPV38, GPV56, MPV31 / pack of 4

【Sturdy and Durable】This BPV-31 piercing valve is made of corrosion-resistant and solid metal; it won't wear out or rust and is very durable.【4-Piece BPV-31 Bullet Piercing Set】One package contains 4 sets of piercing valves; each set includes 1 piercing valve and 1 Allen key.【Replacement Part Numbers】BPV31, BPV31D, GPV14, GPV31, GPV38, GPV56, MPV31. Not applicable to R410a refrigerant. 【Wide Compatibility】These air conditioning cooling parts are compatible with pipes with an outside diameter of 1/4", 5/16", and 3/8". Before installing the ball valve, wipe the copper pipe with a wire brush or emery cloth, then glue it onto the smoothest part of the copper pipe, seal it, and install it with an Allen wrench. 【Easy to Install】You only need an Allen wrench (included) to install this part. Its compact design is easy to install and use. When using, please wear safety glasses and protective gloves before drilling into the pipe. Specifications: Material: Metal Color: Silver Quantity: 4 sets Features: 【Premium Material】 - Made of corrosion-resistant and sturdy metal that will not wear out or rust easily, extremely Durable. Perfect Fit: Compatible with 1/4", 5/16", and 3/8" outside diameter pipes. Please ensure you select the correct size. Replacement Part Number: It can replace BPV31, BPV31D, GPV14, GPV31, GPV38, GPV56, and MPV31. Caution: Do not use with R410a refrigerant. 【Easy Installation】 - The ball valve is easy to install. Clean the copper pipe with a wire brush or scouring cloth, then attach it to the smoothest part of the copper pipe to ensure a perfect seal. Use a hex key for quick and easy installation. Warm Notice: Put on your safety glasses and protective gloves before drilling the pipe. 【Efficient】 - Use these drilling valve kits for accurate and efficient loading. Perfect for both hobbyists and maintenance professionals who need an efficient tool. 【What's Included】- 4 perforated valve kits, each kit including 1 valve drill and 1 hex key. Products included: 4 pieces x perforated valve kits. Warm Notice: - This is not the original product; any model designation related to the brand mentioned above is solely for compatibility purposes. - Wear safety glasses and protective gloves before drilling the pipe. - The color of the actual items may slightly differ from the listing images due to different computer monitors; thank you for your understanding.