Grease Feeder, Polycarbonate, Capacity (Oz.) 2 oz, Dia. (In.) 2 3/8 in, Height (In.) 4 5/8 in, 1/8 in NPT, Operating Temp. (F) -10 Degrees to 250 Degrees F, Spring Tension (PSI) 1 to 2, Static Conditions, Includes (2) Spare Springs, Grease Fitting Cap