Yellow Jacket 49191 Red Gauge Boot 3.125 in

Product Description

The YELLOW JACKET 49191 is a red replacement gauge boot designed to fit 3.125-inch diameter manifold gauges used in HVAC and refrigeration service work. The boot slips over the outer housing of a compatible gauge face, providing a protective rubber or vinyl collar that shields the gauge from impact, abrasion, and jobsite handling. Licensed HVAC technicians and refrigeration service professionals install these boots as part of routine manifold gauge maintenance or when an existing boot becomes cracked, torn, or missing. The red color follows the standard industry convention for the high-side gauge position on a refrigerant manifold set.

This gauge boot is suited for use with 3.125-inch manifold gauges commonly found in residential and light commercial HVAC and refrigeration service manifold sets. It is a straightforward replacement accessory that restores the protective collar on a worn or damaged gauge without requiring replacement of the full gauge or manifold assembly. YELLOW JACKET manifold gauge sets are widely used by HVAC-R service professionals across residential, commercial, and refrigeration applications.

Key Features

• Red color designates high-side gauge position per standard HVAC-R service convention
• Designed to fit 3.125-inch diameter manifold gauge housings
• Protective boot shields gauge face from impact and abrasion during field use
• Replacement accessory extends the service life of existing manifold gauges
• Slip-on installation requires no special tools

Compatibility

Designed as a replacement gauge boot for 3.125-inch diameter HVAC-R manifold gauges. Specific model compatibility was not provided in the product data; verify gauge outer diameter before ordering.

Installation Notes

Installation of a gauge boot does not require system shutdown or refrigerant recovery and can be performed as a bench task between service calls. Ensure the gauge housing is clean and free of debris before seating the boot to achieve a snug fit. No tools are required for standard slip-on boot installation. Inspect the gauge itself for calibration accuracy whenever performing gauge set maintenance.

Technical Specifications

• Gauge Boot Diameter: 3.125 inches
• Color: Red

Standard Information

• Brand: YELLOW JACKET
• Manufacturer Part Number: 49191