Bullet Piercing Valve Kit including 4 Pack BPV-31 Bullet Piercing Tap Valve kit for 1/4 Inch, 5/16 Inch, 3/8 Inch Outside Diameter Pipes & 5pcs Access / Service Valve 1/4" SAE x 1/4" OD x 4" Stem Core - HZ-MONSTAR

• What You Will Receive: You will receive 4 pack BPV-31 bullet piercing tap valve kits (each kit including 1 piercing valve, 1 hex key, 2 adapters) and 5pcs Access / Service Valve, these used to have an easy access to the systems for vacuum charging, pressure checkup and other applications. 4 Pack Bullet Piercing Tap Valve Kits: Bullet piercing tap valve kits for 1/4 inch, 5/16 inch, 3/8 inch outside diameter pipes. Replaces AP4502525, BPV31D, GPV14, GPV31, GPV38, GPV56, MPV31. You only need a hex key wrench (included) to install this part. Its compact design only requires a 2 inch clearance area for installation and use. 5pcs Access / Service Valve: Air conditioner access valve thread x OD: 1/4" sae x 1/4" o.d. Length: x 4" stem, tube Thickness: 0.027". These hvac service valves are generally used to have an easy access to the systems for vacuum, charging, pressure checkup and other applications. Premium Quality: Both of the kits are made of corrosion-resistant metal that won't wear out or rust over time, a convenient replacement part for you to use. The access valve caps are made of copper, they are provided with core remover and have an inside rubber o-ring, 100% tested before shipping. Service: If you have any questions, please send a mail by Amazon to us, we will answer your questions within 24 hours. We are always here to provide you with 100% satisfied after-sale service.