Apec Water RO-Hi Water Filtration System
- Capacity: 90 gallons
- Purification: Reverse Osmosis
- Install Type: Under-Sink
- Material: Polypropylene
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
An under-sink RO system with a 90-gallon capacity rating, aimed at buyers who want higher throughput and are prepared to install it permanently.
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ASIN: B0GJYHP3VGCategory: Water Filtration Systems
Overview
An under-sink reverse osmosis system from Apec Water rated for 90 gallons of output, built with a polypropylene housing measuring about 6 by 16 by 18 inches. It is designed to mount below the kitchen sink and supply a separate drinking faucet.
The 90-gallon rating is a higher output figure than many comparable under-sink RO units, pointing to a larger membrane or multi-stage cartridge setup, though the listing does not break down the number of filtration stages. Reverse osmosis systems like this remove a broader range of dissolved contaminants than a simple carbon filter, at the cost of a permanent install.
- Reverse osmosis purification
- 90-gallon rated capacity
- Under-sink install
- Polypropylene housing, about 6 x 16 x 18 in
Who it's for
Homeowners ready to install an under-sink RO system and who want a higher output rating than an entry-level unit. Not for renters or anyone wanting a countertop, no-install filter.
Pros and cons
- Reverse osmosis with a 90-gallon rated capacity
- Compact under-sink footprint
- Requires permanent under-sink installation
- Number of filtration stages not listed
Performance notes
Reverse osmosis pushes water through a membrane to filter out dissolved solids, and the 90-gallon rating here suggests the system is built for steady household use rather than light or occasional filtering. The polypropylene housing keeps the unit lighter than metal alternatives while still fitting the tight space under a sink.
Specifications
| Brand | Apec Water |
|---|---|
| Dimensions & fit | |
| Dimensions | 6 × 16 × 18 inches |
| Dimensions | 6 x 16 x 18 in |
| Capacity & performance | |
| Capacity | 90 gallonshigher than 60% of 46 water filtration systems |
| Construction & materials | |
| Material | Polypropylene |
| Compatibility & installation | |
| Install Type | Under-Sink |
| Other details | |
| Purification | Reverse Osmosis |
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
What capacity is the Apec Water RO-Hi rated for?
It is rated for 90 gallons of output.
Does the RO-Hi install under the sink?
Yes, it is built for under-sink installation and feeds a separate faucet.
What is the RO-Hi housing made of?
It uses a polypropylene housing rather than metal.