Graco Husky chemical transfer air-operated double diaphragm pumps are loaded with features to help you get the job done right, every time.Flow rates of 0.25 gpm (0.94 lpm) to 300 gpm (1135 lpm)Up to 30% more efficient than market leaders30% increase in fluid flowReinforced frame for increased strength and smaller profilesUp to 5 times longer diaphragm life compared to other diaphragm pumps in its classChemical pumps available in polypropylene, PVDF, SST, and hastelloy fluid sectionsOver-Molded Diaphragm vs Standard DiaphragmGraco Husky AOD pumps use over-molded diaphragms in theirAODD pumpsand are much more durable compared to standard diaphragms.