High Flow Whole Home Water Filtration System (EPWO4)


This high-flow whole home system allows larger family homes to experience the benefits of filtered water without reduced water pressure.

  • Heavy Duty System – Designed for larger homes with 1” plumbing and installs on the incoming water line to protect your home’s water-using appliances and plumbing
  • Filter Changes Made Easy – Includes pressure relief button and mounting bracket for hassle-free filter changes
  • Customized Filtration – Open sump design uses EcoPure 10” large capacity filters EPW4F, EPW4C, EPW4P, EPW4S and all major brands of universal, drop-in-style filters, including Whirlpool, Omni, Culligan, Watts, Filtrete, 3M, GE, and DuPont
  • Helpful Reminders –Want regularly scheduled maintenance reminders? Sign up for email reminders online or by texting 'ECOPURE' to 444999
  • Limited One-Year Warranty – This system comes with a one-year manufacturer's warranty on parts
  • Includes – Water filter housing, sump wrench, mounting bracket with screws, and a written installation guide

Reduces Sediment

Reduces Chlorine Taste & Odor

All Household Sizes

Universal Fit

Where to Purchase


Additional Product Information


Universal Fit

The EcoPure EPWO4 system gives you customized filtration by utilizing your choice of universal, drop-in-style filter. Uses EcoPure universal filters EPW4F, EPW4C, EPW4P, EPW4S and all other major brands of large capacity whole home filters, such as: Whirlpool, Omni, Culligan, Watts, Filtrere, 3M, GE, and DuPont

Installation Location

This EcoPure system is specifically designed for 1” water pipes and comes with 1” plumbing connectors for a seamless, at-home installation. Install the EPWO4 before your water heater and/or water softener to protect your plumbing and water-using appliances from sediment, sand, silt, rust and dirt.

Limited One-Year Warranty

As a courtesy to our customers, EcoPure provides a limited 1-year warranty upon purchasing the EcoPure EPWO4 Whole Home Water Filtration System. To validate your warranty, please register your product.


Sign up for Maintenance Reminders

Just fill out the form, tell us which EcoPure product you own, and we'll send you an email when it's time to change filters or add cleanser.


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