Rubber boots slip easily around gauges for cushion and protection|Fit 2-1/2 and 3-1/8 in gauges without covering easy access recalibration screw|Color-coded red or blue to match gauge
Yellow Jacket Protective Gauge Boot, For Use With: 2-1/2 in, 3-1/8 in Vacuum Gauge and Solar Gauges, Rubber, Blue