SUNSET FILTERS Type VI Spa and Hot Tub Filter Replacement Cartridge - for Coleman SaluSpa Hot Tub Filters, Bestway Filter, Lay-Z Spa, Intex, S1 Filter Replacement, Spa Filter Replacement (4-Pack)Brand: SUNSET FILTERS Features: Sunset Filters Type VI Spa and Hot Tub Filter Replacement Cartridge compatible with Coleman SaluSpa filter , Lay Z Spa, Bestway, Intex and other inflatable hot tub filter Fits all Spa Models Requiring Type VI Filters. A Perfect Fit: Our type VI SPA filters measure 4. 1 x 3. 1 and are conveniently sold in 4 and 6 packs. For best results, clean your Spa filter cartridge replacement often and replace every 23 weeks during