PB 3309701 Panel Air Filter for Power Boss SW/8XV, SW/9XV Standard, SW/8XV, SW/9XR, SW/9XR Armadillo Sweepers and Minuteman Sweeper/Scrubbers. Standard cellulose fibers trap fine dust and dirt particles. These cellulose filters can be blown out with compressed air. For a water washable, heavy-duty synthetic version, use PB 3334165. The 3334165 filters hold up much longer than the standard cellulose panel air filters. Measures 24 x 30". Includes heavy duty poron gasket material. Many models require one filter. Please check your model before ordering. There are a few variants of the SW/9X series. Please check that your model requires one 24 x 30" filter. Will not fit Power Boss SW/9XV Series (uses two 18 x 24" Filters - PB 3307432 or 3334070-SYN). Replaces Minuteman Power Boss 33309701. Our Part Number 3309701P