Flow Indicator Indicator Type Rotor Body Material Polystyrene Connection Size 1/4 in Connection Type Barbed Operating Pressure - Maximum 10 psig Sight Material Not Applicable Sight Diameter Not Applicable Number of Windows Not Applicable Flow Direction Horizontal Vertical Media Temperature - Minimum 40 Degrees F Media Temperature -Maximum 175 Degrees F Seal Material Not Applicable For Media Type Gas Liquid Overall Length 51 mm