2pcs Quick Connector Adapters R1234yf to R134a High and Low Quick Couplers Connectors [Wide Application] This low and high-side quick coupler is suitable for R1234YF, R12, and R134A car air conditioner AC charging systems. It works with R1234yf refrigerant, AC manifold pressure gauges, diagnostic checks, recovery, and evacuation tasks. [R1234YF High Side] The R1234YF high side quick connector is red and features a 17mm female x 1/4" SAE male connection. Includes a 1/4" SAE female x 16mm R134A high-pressure quick connector adapter. This coupler supports R1234YF, R12, and R134A air conditioning systems. Constructed for reliable performance and durability, it features a ball lock design and rubber sealing ring for effective sealing during use. [Easy to Remove and Install] The quick coupler includes an auto-disconnect function for easier installation and removal. The ball lock mechanism combined with a rubber seal ensures secure and leak-free connections. [High-Quality Material] Made from brass for strength and durability. Resistant to rust and corrosion, designed for long-term use in automotive AC applications. [R1234YF Low Side] The blue low side quick connector features a 14mm female x 1/4" SAE male connection. Includes a 1/4" SAE female x 13mm R134A low-pressure quick connector adapter. Specification: Product Name: Quick Couplers Material: Brass Size: 7.3 x 1.6cm / 2.8 x 0.6 inch Color: Red + Blue Package Included: 2 x Connector Note: Due to differences between monitor displays, the picture may not reflect the actual color of the item. Please allow slight dimensional variations due to manual measurement.