SQUARE D 9037HG30R Lqd Lvl Swch, 2-1/2 In MNPT, OpnOnRse, SS. More details: Liquid Level Switch, Horizontal Mounting, Tank Connection Size 2-1/2 In. MNPT, Operating Temp. Range -22 Degrees to 220 Degrees F, Max. Pressure 50 psi, Switch Function Open On Rise, Overall Length 16.06 In., Float Material Stainless Steel, Float Length 7.13 In., Float Dia. 2.625 In., Stem Material Stainless Steel, Stem Length 4.37 In., Float Travel 4-1/2 In., Height 5.98 In., Width 2.88 In., Contact Form DPST, Max. Current 10A, Max. Voltage 600, HP @ 1 Phase - 115V 2, HP @ 1 Phase - 230V 3