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The YELLOW JACKET 49091 is a red protective gauge boot designed to shield refrigeration and HVAC manifold gauges from jobsite damage. Gauge boots absorb impact, resist abrasion, and help extend the service life of precision instruments that technicians depend on daily. This boot fits over the gauge body to protect the dial face, bezel, and case from drops, scrapes, and chemical exposure common in field service work. HVAC and refrigeration technicians install these as standard protective accessories on manifold gauge sets used in residential and light commercial service applications.
This protective boot is suited for use on manifold gauge sets in refrigeration and HVAC service environments. It is color-coded red, which by industry convention typically corresponds to the high-side gauge on a manifold set, supporting quick visual identification during service calls. Technicians working in tight mechanical rooms, rooftop units, or condensing unit installations will find the added protection valuable where gauges are frequently set down on hard or rough surfaces.
Designed as a protective accessory for HVAC and refrigeration manifold gauges. Confirm gauge diameter and body dimensions before ordering to ensure proper fit.
Installation requires no tools — the boot slides or snaps over the gauge body. Ensure the gauge is not connected to a pressurized system when fitting or removing the boot. Verify that the boot does not obstruct the dial face, bezel, or port connections once seated. Follow all applicable refrigerant handling and safety protocols when servicing systems.
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