Harmsco (HB-20-20W) 20"X4.5" Big Blue "Calypso Blue" Pleated Sediment 20 Micron Filter Stenner (MCCP201) Tube W/Ends (5 PK) #1 Connect the chemical supply line

Connect the chemical supply line to the pump inlet and the discharge line to the injection point

and other pathogens by damaging their DNA and RNA

Verify your existing housing accepts standard 20-inch cartridges before ordering

📦 Compact Design

NIST-traceable single-use pH buffer pouches for reliable field and laboratory calibration

Harmsco (HB-20-20W) 20"X4.5" Big Blue "Calypso Blue" Pleated Sediment 20 Micron Filter Stenner (MCCP201) Tube W/Ends (5 PK) #1 Connect the chemical supply lineThe 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