Versatile pump fits a variety of sizes; works with 15, 30 and 55 gallon drums. Easy fingertip control. Easy-to-use flip top vent controls siphon flow. Compatible with most cleaning solutions and corrosive chemicals. Use with thin, easily flowing chemicals. Do not use with solvents. Available with 2" IPS adaptor for steel and plastic drums, or a 2" buttress adaptor for plastic drums with buttress threads.