Description: Premium MaterialThe quick couplers are made of brass and pass a strict inspection to ensure their quality and premium performance. Ther accurate knurled grip rings are for easy operation. No LeakageThe combination of the ball lock design and rubber seal provides excellent sealing performance. These conversion adapters are with automatic closing function. It's convenient to disassemble and install them. Portable AccessoriesThese quick couplers are of a compact size. Therefore, you can take them out for change or maintenance anytime. They are lightweight, so they won't make you feel very tired when you install them. Wide ApplicationThe R1234YF to R134A low and high side quick couplers fit for R1234YF/R12 to R134A car air-conditioning AC charging, R1234yf refrigerants, AC manifold gauge, recovery and evacuation work. Size InformationAbout the height, inner diameter and outerdiameter, the high-side quick coupler measures about7 x 1.7 x 2cm/2.76 x 0.67 x 0.79inch, and the low-side7 x 1.4 x 2cm/2.76 x 0.55 x 0.79inch. Specification: Material: brass Color: (high-side quick coupler) dusty pink + gold + red, (low-side quick coupler) dark blue + gold + cyan Feature: durable Size(approx.): high-side quick coupler (height x inner diameter x outer diameter) 7 x 1.7 x 2cm/2.76 x 0.67 x 0.79inch low-side quick coupler (height x inner diameter x outerdiameter) 7 x 1.4 x 2cm/2.76 x 0.55 x 0.79inch Package Included: 2 Pcs x Quick Couplers (varied in color) Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 1-2 cm differences due to manual measurement.