Amazon.com: Cosyspa Hot Tub Filter | Spa Pool Standard & Screw in Replacement Cleaner Cartridges | Compatible with All Inflatable Hot Tubs & Jacuzzi [Pack of 1/6/12] (Screw in, Pack of 1) :
Jacuzzi® 52 Sq Ft Spa Filter
Hot Tub Things Filter (compatible with Jacuzzi® 6000-383)
Amazon.com : POOLPURE PLFPRB50-IN Spa Filter Replaces Pleatco PRB50-IN, Unicel C-4950, Filbur FC-2390, Jacuzzi J210/J220/J235/J245/J275, Guardian 413-212-02, 373045, 817-5000, 5X13 Drop in Hot Tub Filter, 2 Pack : Patio, Lawn & Garden
Filter: 2540-387 for J-400 Series Jacuzzi Brand Hot Tubs – Hot Tub Store