Home / Home & Kitchen · Product overviews / Kitchen & Bath Fixtures / Under-Sink & Countertop Filtration · More from Midea
Midea MWP30S1AWW-E 4-Stage Under-Sink Reverse Osmosis System: specs and fit
A 75 GPD four-stage reverse osmosis system for under the sink that needs no electricity, with push-to-connect filters and a stainless steel faucet.
This page contains an affiliate link, marked as such. If you buy through it, Bloiq may earn a commission at no extra cost to you.
The Midea MWP30S1AWW-E is a four-stage reverse osmosis (RO) drinking water system that sits under the kitchen sink. It is designed to give a dedicated tap of filtered water for drinking and cooking, without needing an electrical outlet.
How reverse osmosis works
In reverse osmosis, water is pushed through a very fine membrane that blocks most dissolved substances. Midea quotes filtration down to 0.001 micron and says the system reduces up to 99.9% of contaminants, including lead, chlorine, sediment and chemicals, across more than 1,000 impurities. Brands often phrase results this way, so look for the specific substances covered in the certification documents. Midea also says the water keeps essential minerals and has better taste and less odour, which it ties to cooking and drinks such as tea and coffee. Reverse osmosis in general reduces many minerals, so check this claim in the manual.
The four stages
Four-stage systems typically combine sediment and carbon pre-filters with the RO membrane and a final polishing step. The listing doesn't detail each stage, so check the manual for the order and the replacement schedule.
No electricity needed
Midea says the system needs no electricity or socket installation. It measures about 10.3 x 8.3 x 15.0 inches and weighs 10.8 lb, and the brand says it fits kitchens, bathrooms, RVs and offices, freeing cupboard space compared with larger tank designs. Its output is rated at 75 gallons per day (GPD), which is the membrane's daily production rate, not how fast water leaves the tap.
Certification and materials
The system is listed as certified to NSF/ANSI 372, which relates to lead content in materials that touch drinking water. Midea also notes a 304 stainless steel faucet. NSF/ANSI 372 doesn't by itself cover contaminant reduction, which is the job of other standards such as NSF/ANSI 58 for RO systems, so check the certification documents for exactly what has been tested.
Replacing filters
Midea's "one touch" design uses push-to-connect fittings with double O-rings, so you can replace a filter in about 3 seconds without tools. The brand puts filter life at 6 to 12 months, though real life depends on your water quality and usage.
Who it suits
It suits households that want filtered drinking water at a separate tap, renters and RV owners who prefer a simple setup, and people who want to cut back on bottled water.
What to check before you buy
- Sink space: measure the cupboard, including plumbing, to fit a unit about 15 inches tall.
- Water pressure and supply: RO systems work within a pressure range, so check the manual.
- Faucet hole: confirm there's a spare hole in the sink or counter, or that you can drill one.
- Drain connection: RO systems send rejected water to the drain, so plan for that line.
- Water source: use only water that's safe to drink, since RO isn't a disinfectant.
- Upkeep: note the replacement filters you will need and how often.
The short version
- A four-stage under-sink RO system rated at 75 GPD.
- No electricity needed; about 10.3 x 8.3 x 15.0 inches.
- NSF/ANSI 372 certified; 304 stainless steel faucet.
- Push-to-connect filters, with 6-12 months of life quoted.
Bloiq is reader-supported. Some links may earn us a commission; it never affects what we write. How we make money.
