1 / 7iSpring RCC7-BLK 5-Stage 75 GPD Reverse Osmosis System
The iSpring RCC7-BLK Reverse Osmosis System is a five-stage, under-sink water filter listed at 75 GPD and supplied with a black faucet and storage tank. Its manual, gravity-fed power configuration means no power source is required, while its tank and multi-stage design suit households seeking a dedicated drinking-water faucet.
At a glance
- Five filtration stages include three pre-filters, an RO membrane and a final polishing filter, according to the listing.
- A 3.2-gallon storage tank provides a reserve of filtered water.
- The listing describes a transparent first-stage housing for visual filter inspection.
- The manufacturer says the system is intended for municipal tap water, not untreated well water.
Reference price: $239.99
Price checked: Nov 14, 2026
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Pros and cons
Pros
- No electrical power source is required according to the listed power configuration.
- The included black faucet provides a separate dispensing point for treated water.
- A transparent first-stage housing can make sediment-filter inspection easier without opening the housing.
Cons
- Filter maintenance is part of ownership. The listing gives a one-year filter life cycle, so replacement intervals and ongoing filter costs matter.
Technical specifications
13 specifications| Brand | iSpring |
|---|---|
| Model | Reverse Osmosis System |
| Purification method | Reverse Osmosis |
| Stages | 5 Stage 75 GPD Under Sink RO System with Black Faucet |
| Rated output | 75 gallons |
| Installation type | user-installation |
|---|---|
| Dimensions listed | 23"L x 16"W x 12"H |
| Power configuration | Manual (Gravity-fed) |
| Material listed | Plastic |
|---|---|
| Upper temperature rating | 110 °F |
| Maximum supported water TDS | 1000 |
| Storage tank capacity | 3.2-gallon capacity water tank |
| Filter life cycle | 1 years |
What to know before buying
- The listing describes the product as NSF/ANSI 58 certified and also says the tank was independently tested to NSF/ANSI standards. These statements are not the same certification claim. Confirm the exact certification scope for the complete system and components if certification is a purchase requirement. The manufacturer states the system is designed for municipal tap water and that high source-water TDS or overdue filter changes can affect the resulting TDS. Customer feedback includes reports of faucet leaks, so check connections and monitor the installation.
What’s in the box
Included- RO system
- Black faucet
- Storage tank
- Extra tool set
Who is it for?
A good fit for
- Households on municipal tap water wanting a dedicated under-sink RO faucet and a storage tank.
- DIY installers comfortable connecting an under-sink system and following filter-maintenance guidance.
- Buyers who prefer a system that operates without electrical power.
Less suited to
- Users who need a system specifically designed for untreated well water.
- Buyers who want a tankless setup or do not have under-sink installation space.

Customer reviews on Amazon
- 5 stars
84% 84% - 4 stars
8% 8% - 3 stars
2% 2% - 2 stars
1% 1% - 1 star
5% 5%
Customer feedback highlights easy installation, clear instructions, ease of use, crisp taste and perceived water-quality and filtration benefits. Some customers also report faucet leaking. For buyers choosing this system for a DIY installation, the favorable installation comments are relevant, while the reported leaks make careful faucet and connection checks worthwhile. These are customer perceptions and reports, not a guarantee of water results or leak-free operation.
Positive themes
- Customers report straightforward installation and helpful instructions.
- Customers describe the filtered water as crisp-tasting and report satisfaction with its perceived quality.
Negative themes
- Some customers report faucet leaks.
Mixed feedback
- Feedback is favorable about setup and water taste but includes concerns about faucet leakage.
Frequently asked questions
Is the RCC7-BLK suitable for well water?
The manufacturer says it is designed for municipal tap water. For well-water use, it says feed water should first be treated with point-of-entry filtration.
Does this system need electricity?
The listing gives its power configuration as manual, gravity-fed. It says the system operates without a power source.
How much water does the storage tank hold?
The feature description lists a 3.2-gallon capacity water tank.
What maintenance information is provided?
The listing gives a one-year filter life cycle and identifies replacement filters by stage. Actual replacement timing can depend on use and source-water conditions.

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