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💧 Elevate your hydration game with the powerhouse membrane that keeps your water—and life—pure and efficient.
The GREATWELL MRO400 is a high-capacity 400 GPD reverse osmosis membrane replacement designed for the Greatwell ROG400 system. Engineered by GE, it delivers rapid filtration with a 1.5:1 pure-to-drain ratio, removing up to 99% of over 1,000 harmful contaminants. Its snap-on design ensures easy installation, and its durable build supports up to 3 years of reliable, eco-efficient water purification.
| ASIN | B07H8XT9GF |
| Batteries required | No |
| Best Sellers Rank | #441,548 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2,913 in Replacement Under-Sink Water Filters |
| Customer Reviews | 4.8 4.8 out of 5 stars (15) |
| Is Discontinued By Manufacturer | No |
| Item Weight | 3.39 pounds |
| Item model number | MRO400 |
| Package Dimensions | 13.19 x 8.15 x 7.01 inches |
L**.
The best filters. Best customer service.
Wonderful customer service. Great product.
Z**K
Filter Life
I have owned this unit for four years now. The smaller filters last a year, the RO Filter lasted 2 years. Heavy use, water for coffee and Tea, cooking, Dogs and Chickens!
Trustpilot
3 weeks ago
4 days ago