Static Pressure Fitting, Material Plastic, Connection Size 1/8 in, 3/16 in, Includes Foam Gasket, Mounting Screws, Compatible Brand and Series Dwyer Megahelic Gauges, Connection Type Hose Barb, Features Fine Mesh Screen Hides Static Pressure Pickup Port, For Tubing Diameter 1/8 in, 3/16 in, For Use With 2 In. x 4 In. Electrical Box, Controllers, Manometers, Pressure Switches