ERO 375-385 EcoWater Replacement Filters & Membranes

USA-made compatible ERO 375-385 EcoWater Replacement Filters & Membranes. Same fit, fewer headaches, shipped to your door.

A reverse osmosis water filtration system with multiple filter stages, a storage tank, and a faucet.
ERO-375/385 Filter Set & Membrane with Private labels (WE313)  Due to high demand, please allow 5 business days to ship ERO-375/385 Filter Set & Membrane with Private labels (WE313)  Due to high demand, please allow 5 business days to ship
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ERO-375/385 Filter Set & Membrane with Private labels (WE313) Due to high demand, please allow 5 business days to ship
Sale Price: $390.00 Original Price: $420.00

Compatible filter set & membrane for the ERO-375 & ERO-385 models. (100% Compatible- down to the specs!)

You asked.. we answered! Introducing the compatible filter set with membrane for ERO-375 & ERO-385.

Specifications:

  • Filter Life: 12 months

  • Membrane Life: 12-24 months

  • Pressure: 40-100 psi

  • Temperature: 40-100° F

FAQ

Q: What is the difference between the compatibles and the originals?

A. The only difference is the private label. They are physically identical with identical specs.

Filter Set for EcoWater ERO-375/385 (CM311)  Due to high demand, please allow 5 business days to ship Filter Set for EcoWater ERO-375/385 (CM311)  Due to high demand, please allow 5 business days to ship
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Filter Set for EcoWater ERO-375/385 (CM311) Due to high demand, please allow 5 business days to ship
Sale Price: $165.00 Original Price: $185.00

Filter Set for EcoWater ERO-375/385

Compatible Pre-Filter (CM308) & Post-Filter (CM309)

Please note the filters are approximately 2” shorter than the original filters but have the same specs and adequate capacity to last 6-12 months

Membrane for ERO-375/385 (WE312) Membrane for ERO-375/385 (WE312)
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Membrane for ERO-375/385 (WE312)
Sale Price: $199.00 Original Price: $245.00

Compatible Membrane for the ERO-375 & ERO-385 models (Center Element)

Upon receiving your membrane and prior to installing it, if you are not satisfied we will accept a return for a full refund

Reverse Osmosis Membrane Specifications:

  • Filter Life: 24-36 months

  • Pressure: 40-100 psi

  • Temperature: 40-100° F

  • For use in models ERO-375, ERO-375E, HERO-375, HERO-375Plus, ERO-385, ERO-385E, and HERO-385Plus.

Membranes for ERO-375/385 - Buy One Get One 50% Off! (WE314) Membranes for ERO-375/385 - Buy One Get One 50% Off! (WE314)
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Membranes for ERO-375/385 - Buy One Get One 50% Off! (WE314)
Sale Price: $337.50 Original Price: $450.00

MEMBRANES for EcoWater ERO375/385- Buy One Get One 50% Off!

Upon receiving your membranes and prior to installing them, if you are not satisfied we will accept a return for a full refund

Reverse Osmosis Membrane Specifications:

  • Filter Life: 24-36 months

  • Pressure: 40-100 psi

  • Temperature: 40-100° F

EcoWater ERO 375 Replacement Filters and ERO 385 Filters Without the Dealer Markup

Your EcoWater ERO-375 or ERO-385 reverse osmosis drinking water system was built to deliver pure water for years. It removes up to 92 contaminants, including lead, fluoride, PFOA/PFOS, and chlorine taste. The filters and membrane that make that happen need replacing on schedule, but they don’t need to come at dealer prices.

EcoWater ERO 375 replacement filters through authorized channels carry a steep markup, and the 375 series has been superseded by the 385. That makes OEM sourcing even harder. EcoWater ERO 385 replacement filters are easier to find through dealers, but you’re still paying more than you need to for the same filtration.

Compatible 375/385 EcoWater filters solve both problems. Same fit, same performance, same easy change filters, at wholesale water filter pricing shipped directly to your door.

Pay Less For Same Specs With EcoWater ERO 375 Replacement Filters

The EcoWater ERO-375 water filter system uses a proprietary pre and post filter design that locks into a quarter-turn housing. We carry two options for the ERO-375. 

The WE313 set includes original filters and membrane with private labels, meaning they are physically identical to the OEM parts in every way, just without the EcoWater branding. 

The CM-labeled option (filter set CM311 and membrane CM310) is a compatible alternative that is slightly shorter than the originals but meets the same performance specifications. 

Both options replace OEM part numbers 7382916 and 7382762 and fit the ERO-375, ERO-375E, and the HERO 375 filter replacement variants, including the HERO-375Plus.

The ERO 375 reverse osmosis system produces 17.4 gallons per day at standard conditions. Both the WE313 and CM311 filter sets maintain that production rate and contaminant reduction throughout their full 6 to 12 month lifespan. The compatible CM filters are roughly two inches shorter than the originals, which has zero impact on performance or capacity.

Upgrade on the Budget With EcoWater ERO 385 Replacement Filters

The ERO 385 reverse osmosis drinking water system is EcoWater’s current flagship. It produces up to 50 gallons per day with a high-recovery 42% membrane and achieves a nearly 1:1 process water ratio, meaning far less waste than most reverse osmosis systems. The Eco Water ERO 385 also adds PFOA/PFOS and VOC reduction through its premium post-filter, making these ERO 385 reverse osmosis filters some of the most comprehensive on the market.

Compatible ERO385 filters at Wholesale Filters Direct are direct drop-ins for the ERO-385, ERO-385E, and HERO 385 Plus filters. Whether you need a full ERO 385 filter replacement or just a membrane swap, the process is the same quarter-turn installation with the same contaminant reduction and water flow. 

The WE313 set gives you original filters and membrane with private labels at a lower price than going through a dealer. The CM-labeled set (CM311 filter set and CM310 membrane) is a compatible alternative built to the same specs in a slightly different form factor.

EcoWater ERO 375 Replacement Filters Price vs. ERO 385 Replacement Filters Price

If you’ve been comparing the EcoWater ERO 385 replacement filter price through a dealer to what’s available here, the compatible filter sets start well below what you’d pay through a local dealer for either model.

A Simple Schedule That Keeps Your ERO 375-385 Filters at Peak Performance

Our AutoShip option locks in that pricing on a recurring schedule. Pick your interval and the right filter set shows up before you need it. No dealer appointments, no price surprises, no scrambling for stock.

  • Pre-filter and post-filter every 6 to 12 months, depending on water usage. 

  • Reverse osmosis membrane every 2 to 3 years.

Frequently Asked Questions

  • An exhausted pre-filter lets sediment reach the RO membrane, shortening the life of the most expensive component in the system. An aging membrane loses TDS rejection, letting dissolved solids into your drinking water. A filter set costs a fraction of a membrane replacement. Staying on schedule is the cheapest protection your system has.

  • No. The ERO-375 and ERO-385 use a quarter-turn twist design. Grip the filter, turn left, pull down. Reverse the process with the new one. No wrenches, no shutoff valves to close. The water stops automatically when the filter is removed.

  • Yes, within 14 days of purchase. The membrane must be unused and unopened with the clear sanitary bag intact. You'll need a Return Authorization number before sending anything back. A 20% restocking fee applies unless you're reordering the correct item, in which case the fee is waived.

  • Most orders ship within 2 business days. You’ll receive a UPS tracking number via email once your order leaves the warehouse. High-demand items may take up to 5 business days.

  • You don’t need to replace the whole system. The ERO-385 membrane and post-filter are fully retrofittable into the ERO-375 housing, so you can upgrade filtration capability without buying new hardware.