Underhill Big Gulp Water Removal Hand Pump

Underhill Big Gulp Water Removal Hand Pump

Product Files
Product Description

Underhill's Big Gulp UltraMax Plus pump is the perfect tool for removing water from your sprinkler or valve box. Huge capacity cylinder makes fast work of this messy job. Constructed with the highest quality materials and the easy to disassemble design make this suction pump a durable, long lasting choice. This just might be the smoothest hand pump you’ll ever use. Replacement seal and o-ring kits are available through the manufacturer.


  • Pump is equipped with a unique plunger seal and o-ring wiper seal
  • Super smooth & durable pumping action collects up to 35 oz./stroke
  • Pump is self-priming with high volume water capacity
  • Unit completely disassembles to clean for longer life and usage
  • Equipped with a contour grip handle, no more busted knuckles
  • Heavy-Duty Polycarbonate Cylinder Body is made to last
  • Pump Shaft manufactured from Aircraft Aluminum and virtually unbreakable
  • The removable Intake Filter is easy to clean
  • Equipped with a 72” discharge tube
  • Pump is 36” in length 
Product Accessories
If you are not finding the information you need or the information on this page is confusing, please let us know so we can help you (and others). Thank you.