Paper Bags - Sanitaire Style BU, 5-Pack (SL4110, SL4110A, 1451, 3522, 3545, 3550, 3554) Lightweight Signs of failure include grinding

Signs of failure include grinding noises

it lets the brush roll turn freely with minimal friction

A damaged wand makes above-floor work awkward

Function: main structural body shell

A brushless blower that has lost output or runs erratically usually points to a failing motor or its control electronics

Paper Bags - Sanitaire Style BU, 5-Pack (SL4110, SL4110A, 1451, 3522, 3545, 3550, 3554) Lightweight Signs of failure include grindingThese Style BU replacement paper bags provide effective dust filtration for Sanitaire Professional upright vacuums. This pack includes 5 bags. Fits models SL4110, SL4110A, 1451, 3522, 3545, 3550, and 3554. For best cleaning results, replace the bag when it reaches two thirds full. An overfull bag significantly reduces suction and allows dust to bypass the filtration system. Compatible Models: Sanitaire: SL4110, SL4110A, 1451, 3522, 3545, 3550, 3554