Mechanical Flowmeter, Mechanical Flowmeter, For Pipe Size 1/8 in to 1 in, Connection Size 1/8 in, Connection Type FNPT, Fluid Temp. Range 40 Degrees to 150 Degrees F, Wetted Materials Brass, Buna, Clear Acrylic, Stainless Steel, Max. Pressure 100 psi, Flow Range 11 to 100 lpm, Max. Viscosity 79.8 SUS, Flow Material Air, Variable Area, Width 1 in, Height 4 in, Housing Material Acrylic, Fitting Brass, Seal Material Buna N