Pentair Water Purification: Professional-Grade Filtration for Residential Applications
Pentair (Raleigh, North Carolina) is one of the largest water treatment companies in the world, serving commercial, industrial, and residential markets. In the residential water filter segment, Pentair sells the Pentair 3M Aqua-Pure whole-home systems, the Pentair Freshpoint under-sink RO systems, and the Pentair Fleck softeners (through its Fleck Controls division). Pentair filtration systems are sold primarily through plumbing distributors, water treatment dealers, and home improvement professionals rather than direct-to-consumer retail -- making them less familiar to consumers than Brita or Aquasana but well-regarded by plumbing contractors.
Pentair Freshpoint Under-Sink RO
The Pentair Freshpoint GRO-350 (350 GPD, tankless) and GRO-575 (575 GPD, tankless) are commercial-grade under-sink RO systems targeted at homeowners who want professional-specification equipment. At $400--$700 retail, Freshpoint systems cost more than Waterdrop or APEC equivalents but include Pentair's commercial-grade membranes (30% higher rejection rates than residential membranes in independent testing), quick-connect filter housings, and integrated quality monitoring. Freshpoint is available through Amazon and select Home Depot locations.
Pentair Everpure: The Restaurant Water Filter Standard
Pentair Everpure filters are used in the majority of US restaurant and foodservice applications -- the H-104 and S-100 cartridges are the standard for commercial ice machine and beverage equipment filtration. Pentair markets Everpure residential cartridges (H-104, EV-9282-01) for residential use at $60--$90 per cartridge with a 6-month replacement interval. For homeowners who want commercial foodservice-grade filtration at the kitchen tap, Everpure residential under-sink systems ($150--$300 for the unit, $70--$90/cartridge replacement) provide the same filter media used in commercial kitchens.