- Premium Quality Construction: Crafted from high-quality metal, this product offers excellent rust resistance and anti-leak performance. The durable rubber component ensures reliable pressure resistance for safe use. Both kits are designed to resist corrosion, ensuring long-lasting performance that won't wear or rust over time. - Efficient Piercing Valve Kits: The BPV-31 fridge tap valve is compatible with pipes that have an outer diameter of 1/4, 5/16, or 3/8 inches. It replaces models AP4502525, BPV31D, GPV14, GPV31, GPV38, GPV56, and MPV31. Each kit includes 1 punch valve, 1 hex key, and 2 adapters for practicality and ease of use. - Versatile Filling Hose: The refrigerant filling hose features a puncture connection on one end for direct attachment to R134a refrigerant cans. The other end connects via a 1/4 socket to the male connection of the refrigerator. With clear colored dials displaying temperature scales for R134, R12, and R22, you can monitor your system's performance easily. - Self-Sealing Adapter Compatibility: The RH R134a self-sealing adapter allows for easy connection to R134a refrigerant can taps, ensuring compatibility with self-sealing sockets. It provides a straightforward plug for the R134a can tap and a socket for connecting to self-sealing connections. Use Scenarios: 1. Easily service your refrigerator or air conditioning unit by using the piercing valve kit to replace leaking or damaged valves. 2. Quickly refill refrigerant for cars or household appliances, using the filling hose to connect directly with the refrigerant tank without any mess or fuss. 3. Maintain optimal performance of your refrigeration systems by regularly checking and filling refrigerant using this reliable, easy-to-use equipment.