How To Replace Your EcoWater Filter Cartridges On Reverse Osmosis Models, HERO 375, ERO 375E, ERO 375 & ERO 175.
Please note that H2TO Water Treatment Inc. is an authorized EcoWater Systems® dealer.
Replacing the pre filter and post filter on your EcoWater Systems® reverse osmosis is the essential part of maintaining the product. As per manufactures recommendation if water supplies containing both sediment and chlorine the PRE filter cartridge should be replaced every 6 months. Changing the PRE filter often protect the RO membrane from being destroyed by chlorine and/or plugging from sediments.
H2TO Water Treatment Inc. replacement recommendations in Toronto and the GTA on models HERO 375, ERO 375E, ERO 375 & ERO 175 go as followed,
PRE filter cartridge every 6 months
POST filter cartridge every 6 months to 1 year
Membrane cartridge can last up to 5 years
Please follow these steps on how to replace your EcoWater filter cartridges,
Step 1, Remove (turn to the left) the PRE filter cartridge from the filter head.

Step 2, Remove (turn to the left) the POST filter cartridge from the filter head.
Step 3, Discard both cartridges in a proper manner. (EcoWater Canada® offers an industry first Recycling Filter Program. Simply bring your discarded cartridges to any authorized EcoWater Systems® dealer.)
Step 4, Insert new cartridges, reattach (turning to the right) starting with the POST filter cartridge.
Step 5, Model ERO 375E only, replace the battery with new CR 2032 (if needed)
Step 6, Models ERO 375E or HERO 375, press and hold the small black button until the green light begins to flash. (located on top of the manifold, under the cover) Release the button once flashing.
Step 7, It is recommended to discard the first full tank of water after filters have been changed to minimize carbon fines.
H2TO Water Treatment Inc. offers parts and service in and outside of our showroom, parts and filters can be delivered in Toronto and the GTA on any EcoWater Systems® products.
We are also happy to go over these filter cartridge replacement (filter change) step by step with customers who choose to do the replacing of the filter cartridge themselves.
Please contacted by,
Phone: (416) 786-2024 Email: info@h2toronto
Located: 3407 Lakeshore Blvd W, Etobicoke, Ontario M8W 1N2
For more information on how and when to replace your EcoWater filter cartridges please do not hesitate to reach out to us
