About This Shockproof & Integrated Design: The HVAC gauges feature a Durable, all-in-one manifold gauge with a shockproof structure. Non-oil-filled gauges for stable, long-lasting performance High Accuracy & Easy Calibration: The refrigeration gauge's calibration hole allows precise adjustments for accurate readings. Perfect for professional HVAC work Multi-Refrigerant & Wide Compatibility: This digital gauge HVAC supports R22, R410A/R32, R404A, and R407C. Three 1/4" SAE ports for versatile HVAC connections Sight Glass & Ball Valve Control: The HVAC manifold gauges have built-in sight glass for refrigerant flow check. Smooth, precise control with ball valves Compact & Easy To Carry: This HVAC gauge's compact Ф60 design is lightweight and ergonomic. Ideal for on-site HVAC technicians Overview Brand : WIPCOOL Material : Plastic Item dimensions L x W x H : 6.61 x 6.3 x 2.76 inches Number of Items : 1 Thread Type : Sae