Products

WATERAX offers a complete line of high performance portable centrifugal pumps and hand pumps.

OT-4NX Poly Backpack With Brass Hand Pump

250221

OT-4NX Poly Backpack With Brass Hand Pump

250221

The OT-4NX is a poly backpack made of lightweight, yet rugged UV-resistant polyethylene. Its clever, ergonomic design provides a sleek-contoured tank, integrated lumbar support and comfortable shoulder straps. The robust carry handle allows easy lifting while providing a port in which to neatly dock the hand pump. The large diameter filler neck allows convenient filling, easy access for cleaning and includes a filler strainer to capture and prevent particles from entering the hand pump.

The brass hand pump features a forward-grooved hand grip, a robust D-ring which allows you to clip it to the shoulder straps and a rear pistol grip that makes operating the hand pump easier on the wrist and requires less effort than standard hand pumps.

The OT-4NX now features the all-new WATERAX shoulder straps which have been completely re-designed to provide enhanced comfort and safety. The padded straps provide superior load support and are made with breathable materials to help keep you cool and dry. With multiple adjustment options, they provide a custom fit, a chest strap to distribute pressure, heavy-duty fastening clips, and Scotchlite® reflective strips for better visibility.

  • Spotting
  • Mop-up
  • Prescribed burn operations
  • Campsite protection
  • Industrial operations
Tank
  • Made of UV and corrosion resistant polyethylene
  • Integrated lumbar support
  • Durable brass elbow fitting for hose connection to tank
  • Carry handle also functions as storage for the pump
  • Comfortable shoulder straps
  • Water level indicators (US Gallons & Liters)
  • Resistant to UV and ozone
  • Integrated lombar Support
Hand pump
  • All brass & stainless steel construction
  • “Sturdy and ergonomic nylon rear pistol grip”
  • Grooved forward rubber grip
  • “Dual nozzle allows for quick switch from stream to spray”
  • Easily reparable in the field
  • Locking feature
  • D-ring for clipping to shoulder straps
  • Ambidextrous
L x W x H
8.46 x 15.8 x 22.8
Weight
8.5 lbs (3.8 kg)
Wet weight
52.6 lbs (23.9 kg)
5.3 US gal (20 L)
  • Spotting
  • Mop-up
  • Prescribed burn operations
  • Campsite protection
  • Industrial operations
Tank
  • Made of UV and corrosion resistant polyethylene
  • Integrated lumbar support
  • Durable brass elbow fitting for hose connection to tank
  • Carry handle also functions as storage for the pump
  • Comfortable shoulder straps
  • Water level indicators (US Gallons & Liters)
  • Resistant to UV and ozone
  • Integrated lombar Support
Hand pump
  • All brass & stainless steel construction
  • “Sturdy and ergonomic nylon rear pistol grip”
  • Grooved forward rubber grip
  • “Dual nozzle allows for quick switch from stream to spray”
  • Easily reparable in the field
  • Locking feature
  • D-ring for clipping to shoulder straps
  • Ambidextrous
L x W x H
8.46 x 15.8 x 22.8
Weight
8.5 lbs (3.8 kg)
Wet weight
52.6 lbs (23.9 kg)
5.3 US gal (20 L)