Unicel C-4440 Replacement Filter Cartridge | 40 Sq. Ft. | 16 3/4" | Sundance Spas FS2003 Hayward Part Number SPX1039Z1A Pack

Hayward Part Number SPX1039Z1A Pack Quantity 4 screws Fits Assembly SP1039Z1 Strainer Cover Assembly UPC 610377036313 Poolaroo Pro Tip

The Pleatco Advanced PWW35L is a 35 sq

Test for available bromine and repeat sanitization dose at 15 to 20 minute intervals until a residual of 3-6 ppm is established

Enhances any sanitizer program

DPD is commonly considered more accurate than OTO

Unicel C-4440 Replacement Filter Cartridge | 40 Sq. Ft. | 16 3/4" | Sundance Spas FS2003 Hayward Part Number SPX1039Z1A PackThe Unicel C 4440 is a 4000 Series 40 sq. ft. replacement filter cartridge built for Sundance Spas filtration systems. Featuring 158 precision folded pleats of 4 oz. Reemay 2040 polyester media across a 16 3 4" profile, it delivers thorough debris capture and sustained water clarity between cleanings. The castle style closed top cap and open bottom seat securely on your spa's standpipe no guesswork, no adapters. IMPORTANT: Some Sundance Spa Models Use