Product record · APEC-RO-90
APEC ULTIMATE RO-90 5-Stage Reverse Osmosis System
5-stage, 90 GPD under-sink reverse osmosis system, sold without remineralization.
$232.99 Availability varies at Home Depot Buying options ↓
FilterSpecs verdict
how we score6.2 /10
Recommended
Certified by WQA to NSF/ANSI 58 and NSF/ANSI 372 for Arsenic, Lead and Chromium-6 (hexavalent chromium) and 9 others. Five-year cost works out to $0.181 a gallon, 21 percent below the under-sink reverse osmosis median of $0.229. It needs a dedicated faucet hole in the sink or countertop.
- Certified coverage lost 28.3 of its 40 points.
- Cost of ownership lost 3.9 of its 25 points.
- Practical fit could not be scored — fewer than three of five criteria are known (unknown: cartridge lock-in, third-party filter compatibility, required clearance, install difficulty).
Certified reductions
Third-party verified- NSF/ANSI 58 WQA view listing
- NSF/ANSI 372 WQA
Verified against the WQA listing on 2026-09-20. [5]
| What it removes | Influent | Max effluent | Reduction |
|---|---|---|---|
| Reduces arsenicArsenic✓1 sheet, none disagree | —Not printed | 0.01 mg/L | — |
| Reduces bariumBarium✓1 sheet, none disagree | —Not printed | 2 mg/L | — |
| Reduces cadmiumCadmium✓1 sheet, none disagree | —Not printed | 0.005 mg/L | — |
| Reduces copperCopper✓1 sheet, none disagree | —Not printed | 1.3 mg/L | — |
| Reduces fluorideFluoride✓1 sheet, none disagree | —Not printed | 1.5 mg/L | — |
| Reduces chromium-6 (hexavalent chromium)Chromium-6 (hexavalent chromium)✓1 sheet, none disagree | —Not printed | 0.1 mg/L | — |
| Reduces leadLead—not printed | —Not printed | —Not printed | — |
| Reduces radium 226 and 228 combinedRadium 226 and 228 combined✓1 sheet, none disagree | —Not printed | 5 pCi/L | — |
| Reduces seleniumSelenium✓1 sheet, none disagree | —Not printed | 0.05 mg/L | — |
| Reduces total dissolved solidsTotal dissolved solids✓1 sheet, none disagree | —Not printed | 187 mg/L | — |
| Reduces chromium-3 (trivalent chromium)Chromium-3 (trivalent chromium)✓1 sheet, none disagree | —Not printed | 0.1 mg/L | — |
| Reduces turbidity and sedimentTurbidity and sediment✓1 sheet, none disagree | —Not printed | 0.5 NTU | — |
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Key specifications
- Type
- Under-sink reverse osmosis
- How much it makes a dayDaily production
- 90 GPD
- Water pressure neededOperating pressure
- 40 to 85 psi
- Dimensions
- 6 x 17 x 18 in
- Tubing it connects withTubing size
- 1/4 in
- What it weighs emptyDry weight
- 12 lb
- Needs a drain connectionDrain saddle
- Yes, required
- Adds minerals backRemineralization
- No
- Warranty
- 1 yr parts
Water compatibility
Works on city water. Works on well water.
- Municipal water
- Yes
- Private well
- Yes
Not for microbiologically unsafe water
Cost of ownership
- Purchase price, Home Depot
- $232.99
- Filters, 5 years
- $631.95
Assumes 700 gallons per year. Five-year total and cost per gallon are shown with the buying options.
