Body molded of 100% polypropylene for maximum chemical compatibility. Ideal for oils, solvents and other hard to handle liquids. Has FDA and USDA approval for food applications - specify poly valve. Optional features: Available without spring for manual liftup - Custom dip-tube length available - Private labeling available* - Restricter clip modifies pump for 1/4, 1/2, 3/4 oz. output - Standard with 38mm plastic cap. Overall length 16 1/8". Standard 38 mm thread. 1 oz. dispensed for each99ump.