Apec Water RO-CTOP-PHC Water Filtration System
- Capacity: 90 gallons
- Purification Method: Alkaline, Reverse Osmosis
- Installation Type: Freestanding
- 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 countertop reverse osmosis system for households wanting RO level filtration plus remineralized taste without committing to permanent under-sink plumbing work.
As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.
ASIN: B06XY8CHL2Category: Water Filtration Systems
Overview
Reverse osmosis meets remineralization in the Apec Water RO-CTOP-PHC, a freestanding countertop system rated for 90 gallons that includes a calcium carbonate filter stage in its build.
Reverse osmosis strips a wider range of dissolved solids than a carbon-only filter, and the calcium carbonate component listed among its materials points to a remineralization stage that adds minerals back after the RO membrane strips them out. As a freestanding countertop unit, it avoids the under-sink plumbing work most RO systems require.
- Reverse osmosis purification
- Calcium carbonate remineralization stage
- Freestanding countertop design
- 90 gallon rated capacity
Who it's for
Households wanting reverse osmosis level filtration without a permanent under-sink installation, particularly renters or anyone unwilling to modify existing plumbing.
Pros and cons
- Reverse osmosis level filtration
- Includes a remineralization stage
- Freestanding, no permanent plumbing install
- Aluminum and plastic construction rather than stainless steel
- 90 gallon rated capacity is modest next to under-sink RO systems
Performance notes
Reverse osmosis forces water through a semi-permeable membrane that removes a broad range of dissolved solids, and the calcium carbonate stage reintroduces minerals that the RO process would otherwise strip out, addressing the flat taste some RO water is known for.
Specifications
| Brand | Apec Water |
|---|---|
| Dimensions & fit | |
| Item Dimensions L X W X H | 15.5 × 6.5 × 6.5 inches |
| Capacity & performance | |
| Capacity | 90 gallonshigher than 60% of 46 water filtration systems |
| Lowertemperature Range | 40 °F |
| Construction & materials | |
| Material Type | Aluminum, Calcium Carbonate |
| Compatibility & installation | |
| Installation Type | Freestanding |
| Included components | |
| Unit Count | 1 |
| Number Of Packs | 1 |
| Included Components | Osmosis System, Filters, Parts, Owners Manual |
| Warranty & support | |
| Supported Water Tds Level Maximum Ppm | 2000 |
| Other details | |
| Purification Method | Alkaline, Reverse Osmosis |
| Container Type | Cartridge |
| Number Of Items | 1 |
| Other Special Features Of The Product | Portable |
| Part Number | CTOP-PH |
| Item Highlight | Installation-Free Setup, Fits Most Standard Faucets, Raises PH With Mineral Cartridge, 4-Stage Ultra-Pure Filtration |
Closest rivals on specs
iSpring RCC1UP-AK Reverse Osmosis System 100 GPD- Capacity 90 vs 100 gallons (-10%)
iSpring RCC1UP Water Filtration System- Capacity 90 vs 100 gallons (-10%)
iSpring RCC1P Water Filtration System- Capacity 90 vs 100 gallons (-10%)
Frequently asked questions
Is the Apec RO-CTOP-PHC a permanent under-sink installation?
No, it is a freestanding countertop system, so it does not require cutting into existing supply lines.
Does the RO-CTOP-PHC add minerals back to the water?
Its filter set includes a calcium carbonate stage, which points to a remineralization step after reverse osmosis filtration.
What filtration method does the RO-CTOP-PHC use?
Reverse osmosis, rated for 90 gallons.