BF5-21 is the flexible vacuum hose for the Mercury Storm 20-gallon wet/dry vacuum, listed as item 21 on the machine parts schematic. It is the hose section itself. Buyers replacing a split, collapsed or cracked hose on a Storm unit order this part; buyers who also need the cuffs at each end should look at the complete assembly instead.
Fits
- Mercury Storm 20-gallon wet/dry vacuum, model WVP-20 (poly tank)
- Mercury Storm 20-gallon wet/dry vacuum, model WVC-20 (chromed steel tank)
Confirm fitment against your machine model number before ordering.
Related parts on the same schematic
- BF5-20 hose cuff (item 20)
- BF5-26 swivel cuff (item 26)
- BF5-21-COM complete hose assembly, hose plus two cuffs
About the machine
The Mercury Storm is a twin-motor 20-gallon wet/dry vacuum built around dual 1.335 HP vacuum motors, each on its own switch, producing 225 CFM of airflow and 78 inches of water lift. Tank capacity is 20 gallons dry and 15 gallons wet, and the machine weighs 63 lb empty. The vacuum hose locks into the tank port. Mercury Floor Machines and Sandia Products are sister brands sharing one catalog, which is why this part carries a Sandia manufacturer reference.
Order BF5-21 by part number rather than by hose length or diameter. The length and inside diameter figures published in the Storm literature describe the hose the machine ships with, and no manufacturer source ties those figures specifically to this replacement part number. Discount Cleaning Products is a US-based dealer with parts support.
