This item is the 1337 Yellow Jacket Low Side Coupler, specifically designed for automotive R134A A/C systems. 

Features

• Automotive R134A A/C coupler, premium with control valve
• Quick, easy connect/disconnect
• Control valve for access to systems even at working pressures
• Integral safety sleeve holds coupler securely to service port
• Low profile for tight applications
• Highest flow characteristics

What's Included

• 1 x Yellow Jacket High Side Coupler 1/4" Male Flare
  

Summary:

The Yellow Jacket High Side Automotive Coupler R134A 41337 is a specialized tool designed for servicing and maintaining automotive air conditioning (A/C) systems using R134A refrigerant. This high-quality coupler is engineered to connect effortlessly to the high-side service port of the A/C system. It features a unique design that allows for quick and easy connect and disconnect, enhancing the efficiency of A/C maintenance tasks.

The robust construction of the coupler ensures durability and long-term use, making it a reliable choice for automotive professionals. It offers high compatibility with standard R134A service ports, ensuring it can be used across a wide range of vehicle models. The design of the coupler also focuses on safety, ensuring secure attachment to the service port to prevent accidental disconnections or leaks.