Jacuzzi hot Tub Filter Part # 2540-381 – Hot Tub Supply Store
SpiroPure Replacement for Pleatco PJW23 Unicel C-5601 Filbur FC-1330 $14.93
Tier1 15-1/2 in. x 6-5/8 in., 240 sq. ft. Pool & Spa Filter Cartridge for Jacuzzi J300 6541-383, J300 Series Hot Tubs (4-Pack) TIER1_PAS_1342_4_PACK - The Home Depot
Hot Tub Things Filter (compatible with Jacuzzi® 6000-383)