Safety by design - Controlled liquid flow, elimiates vapors, spills and drips for over 1400 listed liquids. 10 year life expectancy. Exceptional ROI. Delivers up to 4 gallons per minute depending on viscosity. 93148 (green) has Viton™ components for use with most solvents and aggressive chemicals. Discharge is 1/2" ID for 1/2" or 5/8" ID tubing. Components meet FDA standards and RoHS requirements.