Harmsco (HB-20-1W) 20"X4.5" Big Blue "Calypso Blue" Pleated Sediment 1 Micron Filter Autotrol 255 Control Valve (1001670) 1" Sweat Copper Tube Adapter Kit and gasket into one piece—no

and gasket into one piece—no bypass

Premium materials tested for long-term reliability

as some older Fleck models may use different thread sizes or configurations

Check brine assembly

Harmsco (HB-20-1W) 20"X4.5" Big Blue "Calypso Blue" Pleated Sediment 1 Micron Filter Autotrol 255 Control Valve (1001670) 1" Sweat Copper Tube Adapter Kit and gasket into one piece—noThe Harmsco HB 20 1W delivers professional grade sediment filtration with pleated polyester media engineered for high dirt holding capacity and extended service life. This 20"x4. 5" Calypso Blue cartridge captures particles down to 1 micron and can be cleaned and reused in most residential and commercial applications. SPECIFICATIONS Harmsco HB 20 1W Technical Details Model Number HB 20 1W Dimensions 20" x 4. 5" (Big Blue) Micron Rating 1 Micron Filter