General description These 20 Pack BPV-31 Adjustable Inline Valve Kits are designed for HVAC air conditioners and are compatible with 1/4 inch, 5/16 inch, and 3/8 inch tubes. They serve as replacement parts for various models including AP4502525, BPV31D, GPV14, GPV31, GPV38, GPV56, and MPV31. Technical specifications Material: Zinc alloy Color: Silver Required clearance for installation: 5.08 cm Measurement allowed error: +/- 1-3 cm Usage These valve kits are easy to use and can be installed with a hex wrench. Other information Package Contents: 20 x BPV-31 Bullet Piercing Valve Kits Note: Light reflection and different displays may cause the color of the item to differ slightly from the actual product.