Where to buy the Big Combo

Combination Primary and Backup Sump Pump


BW4000 Big Combo Combination primary and backup sump pump

Model No. BW4000


  • Combined primary and backup pump in one compact system
  • Pre-assembled for easy installation
  • 1/2 HP Primary Pump
  • Primary pump: 4,400 GPH @ 0ft. lift (3,500 GPH @ 10ft. lift)
  • Backup pump: 2,600 GPH @ 0ft. lift (1,850 GPH @ 10ft lift)
  • See more...

Find the Basement Watchdog Combo at these stores:

Check your local store for availability. Stores listed alphabetically

ACE Hardware

Item no. 4303087

Blains Farm & Fleet

Blain # 831613

Do it Best Hardware

Item #:400509

The Home Depot

Store SKU #618637


Item # 120110


Model No. BW4000

Sump Pumps Direct

Model No. BW4000

True Value Hardware

Item # 128768

Underground Specialties

Model No. BW4000