Unicel 5CH-512 Spa Filter Cartridge – 50 Sq Ft Val-Pak The phosphate test is designed

The phosphate test is designed to deliver accurate

The Giant T-Rex float adds visual appeal to the pool while encouraging active

Why Proper Tool Retention Matters

Maintains proper pressure and flow through the filter

results are consistent

Unicel 5CH-512 Spa Filter Cartridge – 50 Sq Ft Val-Pak The phosphate test is designedThe Unicel 5CH 512 Spa Filter Cartridge is a premium, OEM quality replacement filter designed to restore proper filtration, water clarity, and circulation performance in compatible spa and hot tub systems. With 50 square feet of pleated filtration media, this cartridge provides ample surface area to capture fine debris, body oils, and contaminants that accumulate during regular spa use. Spa filtration systems operate in warm, high bather load