Amazon.com : TOREAD NSF-50 Certified Watkins 31114 Replacement Tiger River Spa Filter, Compatible Unicel C-8465, PWK65, Filbur FC-3960, 71827, 71828 Hot Tub Filter, 65 sq. ft Hot Spring Spa Filter (2) : Patio, Lawn & Garden
SpiroPure Replacement for Pleatco PWK65 Unicel C-8465 Filbur FC-3960 Hot Springs Watkins 65 71827 31114 Hot Tub Spa Pool Filter Replacement Cartridge - Walmart.com
SpiroPure Replacement for Pleatco 31114 Hot Tub Spa Filter $[SVEPrice]
Unicel 8.5 in. Dia 65 sq. ft. Pool/Spa Replacement Filter Cartridge (6-Pack) 6 x C8465 - The Home Depot
Amazon.com : TOREAD NSF-50 Certified Watkins 31114 Replacement Tiger River Spa Filter, Compatible Unicel C-8465, PWK65, Filbur FC-3960, 71827, 71828 Hot Tub Filter, 65 sq. ft Hot Spring Spa Filter (2) : Patio, Lawn & Garden