Control, liquid level, multi-level 3 float, stainless steel construction, 2" NPT, SPST/20VA, common return. Measured from bottom of mounting plate, L1=13" NO, :L2 = 10" NC, L3 = 7" NC, OAL 15" 316 stainless steel stem/mounting and float material, DC micro, style QD, male connector, 4 pin, SS collars.