Unicel C8420 Hayward Hot Tub and Spa 8 Inch Filter Pump 200 Square Foot Pack:1 Pk and follow the colorimeter instructions

and follow the colorimeter instructions for accurate results

Cyanuric Acid | Made in The USA

while the powerful vacuum action whisks away small and large debris

PYRAMEX-SB8620D-Gray Lens with Black Frame

Top Hole Dimension: 3"

Unicel C8420 Hayward Hot Tub and Spa 8 Inch Filter Pump 200 Square Foot Pack:1 Pk and follow the colorimeter instructions200 square foot filter media replacement cartridge ensures your spa works continuously all season long Tightly pleated filter media easily removes dirt and debris to keep your pump running optimally and your water crystal clear Compatible with Hayward CS200E, CX1900RE, CX200XRE, CX2020RE and Waterway Plastics 817 0200P Features an 8 inch diameter that provides a snug fit to catch all the dirt and debris that passes through your pump Specs: Outside