Harmsco (HB-20-50W) 20"X4.5" Big Blue "Calypso Blue" Pleated Sediment 50 Micron Filter Test Kits interval{font-size:22px

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This assembly is critical for maintaining accurate chemical dosing in residential and light commercial water treatment applications

The 200:1 output adjustment range (on deluxe models) accommodates widely varying flow rates without changing tubing or mechanical components

Best performance achieved with pre-filtration including 5-micron sediment and carbon block filters to protect membrane surface from fouling

Harmsco (HB-20-50W) 20"X4.5" Big Blue "Calypso Blue" Pleated Sediment 50 Micron Filter Test Kits interval{font-size:22pxHarmsco Filtration HB 20 50W Calypso Blue Pleated Sediment Filter 20"4. 5" Big Blue polyester cartridge engineered for washable, reusable sediment control at 50 micron Cleanable & Reusable High Dirt Capacity 50 Micron Pleated Big Blue Standard The Harmsco HB 20 50W uses pleated polyester media to capture sediment down to 50 micron while delivering exceptional dirt holding capacity and extended service life. Built for 20"4. 5" Big Blue housings, this