Harmsco (HB-20-5W) 20"X4.5" Big Blue "Calypso Blue" Pleated Sediment 5 Micron Filter FilterCor (FCP1S20P) 20"x4.5" String Wound PolyPropylene 1 Micron Sediment Filter and between filter stages to

and between filter stages to detect clogging or pressure drop

Verify your pump model before ordering to ensure proper fit with existing pump components and tubing assemblies

Standard Big Blue

This genuine Stenner replacement tubing ensures accurate chemical delivery and long-term durability in continuous-duty pump installations

Actual lifespan depends on incoming pH level and water hardness

Harmsco (HB-20-5W) 20"X4.5" Big Blue "Calypso Blue" Pleated Sediment 5 Micron Filter FilterCor (FCP1S20P) 20"x4.5" String Wound PolyPropylene 1 Micron Sediment Filter and between filter stages toHarmsco HB 20 5W 20" x 4. 5" Calypso Blue Pleated Sediment Filter Washable 5 micron pleated polyester for whole house and RO pre filtration 5 Micron Pleated Polyester Reusable 20" Big Blue The Harmsco HB 20 5W is a 20 inch pleated sediment cartridge engineered for Big Blue 20" x 4. 5" housings, offering high dirt holding capacity and extended service life through its cleanable polyester media. At 5 microns, it removes sand, silt, rust, and particulate