Skip to content
    Hydrology University
    All Categories

    Whole House Filtration Systems

    Point-of-entry systems for whole-house use

    Whole-house (point-of-entry) systems sit where your water line enters the home. Compare model-specific specifications, installation requirements, operating conditions, and maintenance instructions.

    5 products

    Best for
    Price band
    Replacement

    5 products

    Prices are the seller's listed price or range when we checked, not a promise. Replacement intervals are as listed by the seller (4 of 5 list one).

    How to Choose: Whole House Buyer's Guide

    Match capacity to your household

    Capacity is rated in gallons before the media is exhausted. A family of four uses roughly 100,000–150,000 gallons a year, so a 1,000,000-gallon system lasts 6–10 years before a media swap.

    Flow rate matters more than people think

    Look for 9–15 GPM. Undersized systems cause pressure drops when two showers run at once. Match the system's GPM to your peak simultaneous demand.

    Compare media and model documentation

    Media types and specifications vary by model. Review current model documentation and look for testing that supports any performance claim you are considering.