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The WATERAX BB-4 ® Series is a full line of high pressure centrifugal pumps that has been used by forest agencies for over 40 years. It has become the weapon of choice in wildland operations. The BB-4 ® comes in portable & vehicle mounted configurations and is powered by Briggs & Stratton Vanguard 18HP and 23HP or Honda 21HP 4-stroke engines to achieve pressures up to 440 PSI (30.3 BAR) and flow rates reaching 106 US GPM. All BB-4 ® models feature a unique greaseless sealed bearing and a blister-resistant mechanical rotary seal. These latest improvements significantly reduce field maintenance and prolong pump end longevity.

Manufactured by WATERAX




  • Slip-on units
  • Attack line firefighting
  • Long hose lay for remote watering during firefighting operations
  • High elevation firefighting in mountainous areas
  • High pressure provides accuracy in flow trajectory
  • Tandem pumping over long distances
  • Parallel pumping for higher volumes

Features and Benefits

  • Quick release clamp and detachable pump end for minimal equipment downtime and inventory
  • Unique blister resistant mechanical rotary seal to prolong pump end longevity
  • Sealed bearing to eliminate pump end greasing in the field
  • Drive assembly for reliable, low maintenance performance
  • Aluminium alloy pump components and anodized parts for lighter weight and greater resistance to corrosion
  • FastwireTM included on all vehicle mounted units.
  • Comprehensive user and service manuals
  • EPA Certified