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} The Filmtec TW30-4040 is the industry standard commercial reverse osmosis membrane
Periodic backwashing at 8–12 gpm per square foot prevents packing and reclassifies the bed
} IPW Industries / Watts Compatible
Push-button calibration with three standard options (KCl
Verify your pump model before ordering to ensure proper fit with existing pump components and tubing assemblies
Harmsco (HB-20-20W) 20"X4.5" Big Blue "Calypso Blue" Pleated Sediment 20 Micron Filter Total Dissolved Solids (TDS)2871 } The Filmtec TW30-4040 isThe 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
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