Yellow Jacket 19128 Quick Coupler 1/4 Str X 1/8 Fpt

Product Description

The YELLOW JACKET 19128 is a quick coupler fitting designed for refrigeration and HVAC service applications. It connects a 1/4-inch male flare straight (STR) inlet to a 1/8-inch female pipe thread (FPT) outlet, allowing technicians to make fast, secure connections between service equipment and system access ports. Quick couplers like this fitting are standard tools in refrigerant manifold and vacuum pump setups, where repeated connection and disconnection is part of the workflow. Licensed HVAC technicians and refrigeration service pros rely on these fittings to maintain leak-free lines during system charging, recovery, and evacuation procedures.

This fitting is suited for residential and light commercial HVAC and refrigeration service work. It is typically used when connecting manifold gauge sets, hoses, or service adapters where a 1/4-inch STR male end must mate with a 1/8-inch FPT port. The compact design keeps service connections clean and minimizes refrigerant loss during hookup and removal.

Key Features

• 1/4-inch male straight (STR) inlet for standard HVAC service hose compatibility
• 1/8-inch female pipe thread (FPT) outlet for common access port connections
• Quick coupler design speeds up connection and disconnection during service
• Compact form factor suited for tight service spaces

Compatibility

Designed as an OEM-style service fitting for use with standard HVAC manifold gauge sets and refrigeration service equipment that accept 1/4-inch STR and 1/8-inch FPT threaded connections.

Installation Notes

Installation is performed by licensed HVAC or refrigeration technicians following applicable EPA Section 608 refrigerant handling regulations. Isolate the system and relieve service port pressure before connecting or removing fittings. Inspect threads for damage before installation and avoid overtightening, which can strip threads or crack the fitting body. Use appropriate thread sealant only if specified for refrigerant-side connections.

Technical Specifications

• Inlet Connection: 1/4 inch Male Straight (STR)
• Outlet Connection: 1/8 inch Female Pipe Thread (FPT)
• Type: Quick Coupler
• UPC: 68680019128

Standard Information

• Brand: YELLOW JACKET
• Manufacturer Part Number: 19128