Tier1 PAS-1581 Replacement Pool and Spa Filter fits systems that use 5 7/8-inch diameter by 10 1/2-inch length filters. Tier1 Pool and Spa filters will protect your investment engineered to outperform the competition and exceed your expectations. Featuring high durability filter fabric that maintains strength even when loaded with sediment, a tighter porosity and denser weave to capture more contaminants in less time, and a high strength, high flow core designed to support the filter while providing industry leading flow rates. Tier1 Pool and Spa filters will clean your water faster and more efficiently with less wear and tear on your pump. Dive in with Tier1, the water's great!
AFFORDABLE REPLACEMENT: Replacement 31489 spa filter for 30 sq ft Hot Spring Spas and Watkins Spas and any systems that needs 5 7/8 inch (diameter) by 10 1/2 inch (length) filters
INCREDIBLY SIMPLE TO USE: Easily replace your old 31489 filter, Filbur FC-3915, Unicel C-6430, Pleatco PWK30 spa filter with the Tier1 spa filter 31489
EXTREMELY DURABLE: Durable & Washable 30 sq ft Pleated Fabric Filter Media to capture sediment and other contaminants with its high strength, high flow design to give you industry leading flow rates for 3 month before your next filter change.
SPA FILTER CARTRIDGE REPLACEMENT: This Tier1 Watkins 31489 replacement filter can be used in place of your PWK30 spa filter.
100% TIER1 NO WORRIES GUARANTEE: We stand behind the quality of filtration and overall performance of our Tier1 filters!