Municipal flows don’t forgive undersized equipment. Knowing how to filter high-flow municipal water means combining certified materials, honest hydraulic sizing and filtration physics that scales — while meeting drinking water rules.
Start with NSF/ANSI/CAN 61 — Non-Negotiable
Every wetted component in a potable system should carry NSF/ANSI/CAN Standard 61 listing. All Harmsco municipal housings are NSF 61 listed stainless steel, built to ASME standards and rated to 150 PSI working pressure.
Let Cyclonic Separation Carry the Load
Well sand and pipeline scale wear out cartridges fast at municipal volumes. Harmsco’s patented Hurricane® up-flow design spins dense solids out before the cartridge — a decisive economy when you’re filtering hundreds of gallons a minute around the clock.
Scale by Manifolding, Not Compromise
One housing doesn’t have to do it all. Municipal systems bank Hurricane® housings in parallel — up to 2,400 GPM through a single line of equipment — so utilities service one housing while the rest carry the flow.
Support LT2 Compliance
For systems under the Long Term 2 Enhanced Surface Water Treatment Rule, Harmsco pleated microglass cartridges support LT2 strategies with absolute-rated filtration in NSF-certified construction.
- NSF 61 listed housings and cartridges
- Cyclonic pre-separation extends element life
- Parallel banks scale to any system size
- Made in the USA since 1958
Planning an upgrade or new well? Talk to Harmsco — we’ve equipped American municipal systems for over six decades.
