Apec Water ROES-PH75 Water Filtration System
- Capacity: 75 gallons
- Purification Method: Reverse Osmosis
- Installation Type: Under-Sink
- Supported Water Tds Level Maximum Ppm: 2000
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A reverse osmosis system for buyers who specifically want membrane-level filtration under the sink rather than carbon-only filtering.
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ASIN: B00NWZ1RCKModel: ROES-PH75Category: Water Filtration Systems
Overview
The Apec Water ROES-PH75 is an under-sink reverse osmosis filtration system rated for 75 gallons of production per day, built with polypropylene housings. Reverse osmosis pushes water through a membrane rather than relying on carbon adsorption alone, the main difference from the carbon-only systems and pitchers elsewhere in this catalog.
The 75 in the model name lines up with the 75 gallons-per-day production rating. RO systems like this typically ship as a multi-stage under-sink install with a separate storage tank, so the listed 15.5 x 5.25 x 17.5 inch dimensions likely describe one component rather than the full assembled footprint. Reverse osmosis removes dissolved solids and many contaminants that carbon filtration cannot touch, at the cost of a more involved install and periodic membrane replacement.
- Reverse osmosis purification
- 75 gallons per day production
- Under-sink installation
- Polypropylene housing
Who it's for
Households wanting the broader contaminant reduction of reverse osmosis under the sink, and who are prepared for a multi-stage install rather than a drop-in carbon cartridge.
Pros and cons
- Reverse osmosis removes dissolved solids carbon filters miss
- 75 gallon-per-day production rating
- More involved under-sink install than a single cartridge
- No stated tank or full assembled dimensions
Performance notes
Reverse osmosis forces water through a semi-permeable membrane, which rejects dissolved solids, many heavy metals, and other contaminants that pass straight through carbon-only filters. The 75 gallon-per-day rating describes production capacity, not storage; most RO systems pair with a pressurized tank to hold filtered water between uses.
Specifications
| Brand | Apec Water |
|---|---|
| Model | ROES-PH75 |
| Dimensions & fit | |
| Weight | 3.11 poundslower than 93% of 41 water filtration systems |
| Item Dimensions L X W X H | 15.5 × 5.2 × 17.5 inches |
| Capacity & performance | |
| Capacity | 75 gallons |
| Upper Temperature Rating | 360 °F |
| Maximum Flow Rate | 0.1 gpm |
| Operating Pressure Range | 40 psi |
| Power & efficiency | |
| Power Source | Water Pressure |
| Construction & materials | |
| Material Type | Polypropylene |
| Compatibility & installation | |
| Installation Type | Under-Sink |
| Included components | |
| Unit Count | 1 |
| Number Of Packs | 1 |
| Included Components | Filter Set, Tank, Faucet, Tubing, Drain Saddle, Feed Water Adapter, Wrenches |
| Warranty & support | |
| Supported Water Tds Level Maximum Ppm | 2000 |
| Other details | |
| Purification Method | Reverse Osmosis |
| Container Type | Cartridge |
| Number Of Items | 1 |
| Other Special Features Of The Product | Heavy Duty, Reduce TDS |
| Part Number | ROES-PH75 |
| Item Highlight | NSF Certified 372 & 58, Reduces 99% Of Impurities, 75 GPD, 6-Stage Filtration, Under Sink Installation |
| Item Type Name | Essence Series Top Tier Alkaline Mineral PH+ 75 GPD 6-Stage Certified Ultra Safe Reverse Osmosis Drinking Water Filter System |
Closest rivals on specs
Berkey RB4X2-BB+PF2 Water Filtration System- Capacity 75 vs 3.3 gallons (+2173%)
- Weight 3.11 vs 4.4 pounds (-29%)
Culligan MCV701B Water Filtration System- Capacity 75 vs 3 gallons (+2400%)
- Weight 3.11 vs 5.01 pounds (-38%)
iSpring UVF11A Water Filtration System- Capacity 75 vs 1 gallons (+7400%)
- Weight 3.11 vs 2 pounds (+55%)
Frequently asked questions
How is this different from a carbon filter pitcher?
It uses reverse osmosis, pushing water through a membrane that removes dissolved solids and many contaminants carbon adsorption alone cannot catch.
What does the 75 gallon-per-day rating mean?
It's the system's production rate, not stored capacity; RO systems typically pair with a separate tank to hold filtered water.
What is it made of?
Polypropylene housings, per the listed material spec.