Tolco Model TDP Plastic Pump Versatile: Includes 3/4" IPS, 2" IPS and pail adaptor Variable Output: Includes restrictor clip to set output per stroke One Size Fits Most: Fits 5 gallon pails, 15 gallon, 30 gallon or 55 gallon drums Applications: Compatible with most water based cleaning solutions Not for use with corrosive chemicals or viscous products