Harmsco (HB-20-20W) 20"X4.5" Big Blue "Calypso Blue" Pleated Sediment 20 Micron Filter Auto Flush Valve this filter delivers superior GAC

this filter delivers superior GAC performance while virtually eliminating the carbon fines release common in standard loose carbon cartridges

5" specialty cartridge with 3 lb KDF-85 and coconut shell carbon for well water treatment

Cation & anion exchange

900 GPD nominal flow rate tested at 2000 ppm NaCl

Harmsco (HB-20-20W) 20"X4.5" Big Blue "Calypso Blue" Pleated Sediment 20 Micron Filter Auto Flush Valve this filter delivers superior GACThe Harmsco HB 20 20W delivers reliable 20 micron sediment filtration in a durable pleated polyester design built for both whole house and reverse osmosis applications. This 20"x4. 5" Big Blue cartridge fits standard Harmsco housings and offers exceptional dirt holding capacity with the extended surface area of pleated media. SPECIFICATIONS Harmsco HB 20 20W Technical Details Model Number HB 20 20W Dimensions 20" x 4. 5" (Big Blue Standard) Micron