APEC ROES-100 Essence Reverse Osmosis System vs iSpring RCC7
Side-by-side comparison of features, pricing, ratings, and alternatives.
The ROES-100 is the high-output model in APEC's Essence series, a five-stage under-sink reverse osmosis system rated at 100 gallons per day. That capacity is the reason to choose it over the more common 50 GPD systems: a higher production rate means the storage tank refills faster, so a busy household is less likely to run the tank down between uses. APEC states the system removes up to 99 percent of contaminants. The five stages combine sediment and carbon pre-filtration, the RO membrane itself and a final polishing stage, which is the standard under-sink RO arrangement. APEC sells a deep catalogue around it: replacement filter sets, tanks, pumps, leak detectors, housings and faucets, plus alternative configurations including tankless, countertop, UV and pH-remineralising variants.
The iSpring RCC7 is a compact, under‑sink reverse osmosis water filtration system that removes up to 99% of over 1,000 contaminants, including chlorine, lead, and fluoride. Its five-stage filtration process combines a sediment filter, carbon block, and high‑rejection RO membrane for consistently clean drinking water straight from the tap. Designed for easy DIY installation, the RCC7 includes a clear housing for filter changes, a dedicated faucet, and a storage tank that provides up to 50 gallons of purified water. It’s NSF certified and comes with a limited lifetime warranty on the tank and a 1‑year warranty on the filters and membrane.
- High 100 GPD output suits larger households
- Comprehensive spare parts and filter availability
- Standard under-sink installation with a dedicated faucet
- Part of a range so upgrades and variants are easy to find
- Highly effective contaminant removal
- Generous storage tank capacity
- Easy DIY installation and filter replacement
- NSF certified components
- Under-sink installation is not practical in most rentals
- RO systems produce wastewater alongside purified water
- Consumes cabinet space for the unit and the storage tank
- Produces wastewater during filtration
- Requires under‑sink space for tank and filters
- Initial cost higher than simple pitcher filters
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The Verdict
AI-generated from listing dataBoth are 5‑stage under‑sink RO systems, but iSpring RCC7 offers a larger 3‑gallon tank and higher contaminant removal confidence, while APEC ROES‑100 delivers far higher daily output at a lower upfront price.
Key differences
- •iSpring includes a 3‑gallon pressurized storage tank; APEC lists only a 100 gpd production rate, no tank capacity given.
- •Price: iSpring $599 vs. APEC $239.95, making APEC less expensive upfront.
- •Daily output: APEC 100 gallons per day versus iSpring’s unspecified (typically ~50 gpd for similar models).
- •Warranty: iSpring offers limited‑lifetime tank and 1‑year filter/membrane warranty; APEC warranty not specified.
- •Installation: Both require under‑sink setup, but iSpring emphasizes DIY kit with all fittings, while APEC notes standard under‑sink installation.
Pricing & value
APEC costs $239.95, substantially less than iSpring's $599.
Capacity (storage/production)
iSpring provides a 3‑gallon pressurized tank; APEC only states 100 gpd without tank size.
Daily output
APEC is rated for 100 gallons per day, double typical residential rates; iSpring's output not specified.
Warranty
iSpring offers limited‑lifetime tank and 1‑year filter/membrane warranty; APEC warranty not provided.
Ease of installation
iSpring includes a full DIY kit with step‑by‑step instructions; APEC mentions standard under‑sink install but no kit details.
Size & footprint
Both require under‑sink space; iSpring dimensions 13.5×10.5×15.5 in, APEC dimensions not specified.
Features
iSpring adds a dedicated stainless‑steel faucet and clear housing for filter monitoring; APEC lists only basic RO features.
Choose APEC ROES-100 Essence Reverse Osmosis System if…
Larger families needing high daily water production at a lower price.
Choose iSpring RCC7 if…
Homeowners wanting a ready‑to‑use tank, higher warranty coverage, and willing to pay more.
Common questions
Which system is cheaper to buy?
APEC ROES‑100 costs $239.95, while iSpring RCC7 costs $599.
Do both systems need a storage tank?
iSpring includes a 3‑gallon pressurized tank; APEC does not specify a tank, only a 100 gpd production rate.
What warranties are offered?
iSpring provides a limited‑lifetime warranty on the tank and a 1‑year warranty on filters and membrane; APEC warranty details are not provided.