Koblenz AL-1225 Wet/Dry Vacuum Foam Filter G4 the brush roll is critical

the brush roll is critical for deep cleaning performance

so the machine holds full suction and never quietly recirculates trapped dust through a saturated filter

Professional installation is recommended for these heavy-duty units

flat face applies even suction across furniture cushions

Koblenz AL-1225 Wet/Dry Vacuum Foam Filter G4 the brush roll is criticalThe Koblenz AL 1225 foam filter (Part #12 0490 8) is a replacement wet dry vacuum filter for Koblenz shop vacuums, cross referenced to Koblenz 1225. It shields the motor from debris during both wet and dry pickup, and it is the type of filter required for wet vacuuming where paper filters cannot be used. A foam filter that has torn, compressed, or lost its springy shape no longer protects the motor or seals properly, letting debris through. Fitting a