Water Pump Backpack There are 2 products.

When you need versatility and functionality out in the field this is the product for you.
The Flexpak is easy to carry with a comfortable shoulder harness system and quick-release sternum strap.
Weighs just 41/2 lbs. empty and 42 lbs. full. Backpack tank conforms to the users back and is collapsible.
It has a 5 gallon capacity, plus foam capability, and is made for left or right hand operation.
Tank is made from a heavy duty, rust proof industrial fabric with welded seams for long service.
Patented pump design uses a brass cylinder and special flapper valve.
Other features include built-in debris screen, 4" filler cap with positive seal and quick connect couplings to pump.
Unit comes complete with air aspirating nozzle and Fireflex tip (garden hose thread).
Ship. wt. 5 lbs.
5 Gallon Capacity
Foam Capability
Lightweight
Shoulder Harness
Nozzle Included