Pressure Gauge Adapter Kit, Connection Size 1/4 in, For Use With Dwyer Magnehelic Differential Pressure Gauges, Includes (2) 5 ft (1.5 M) Lengths of 1/4 in Aluminum Tubing, (2) Molded Plastic Vent Valves, (2) Static Pressure Tips, Aluminum Surface Mounting Bracket with Screws, Compatible Brand and Series Dwyer Magnehelic 2000, Features Adapts Any Standard Magnehelic Gauge For Use as an Air Filter Gauge, Material Aluminum, Plastic