How often does membrane have to be changed please?

The RO membrane is every 2 years, but depends on usage

I've been badly let down by Water2Buy. Is your 5 stage system the same as theirs?

No tried Water2Buy but I had the iSpring 75GDP for 5 months now and it works perfectly well. I chose the pump assisted version because the mains water pressure is only 2bar. Water before filtering is 275ppm and after passing through the RO is 15-20ppm so it is doing it's job. A Brita filter reduced it to 200ppm.

Would this work in barbados where power surply is 110v

Should do. The system works from water pressure and is not connected to the electric.

As I have no power source near my kitchen sink, is it possible to install the system without power socket/electrical wiring? Or is it mandatory?

Hi, Thank you for posting your question here. Unfortunately, the pump needs electricity to work so it's mandatory. If the incoming pressure is at least 45 psi you can buy the non-booster pump system instead like the RCC7. Kind Regards, iSpring Water Systems

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MC7

Product ID: 53005268

Details

External testing certification
NSF
Item weight
191 g
Material
Polypropylene
Product benefits
Removes wide
Product dimensions
5D x 5W x 10H

💧75 GPD high flow rate

🔬0.0001 micron filtration precision

🧪NSF/ANSI certified purity

QAR 189

Duties & taxes included

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Description

💧 Drink Smart, Live Pure — Because Your Water Deserves the Best

HIGH CAPACITY FLOW - Delivers up to 75 gallons of fresh water daily—perfect for busy households and professionals on-the-go.
ULTRA PURE HYDRATION - Removes 99%+ of 1,000+ contaminants including lead, chlorine, and fluoride for crystal-clear water.
SEAMLESS COMPATIBILITY - Fits standard 11.75” x 1.75” under-sink RO systems for easy, no-fuss replacement.
CERTIFIED QUALITY ASSURANCE - Independently tested to NSF/ANSI standards ensuring top-tier safety and reliability.
LIFETIME SUPPORT WARRANTY - Register for peace of mind with lifetime tech support and manufacturer warranty.

The iSpring MC7 is a premium NSF certified reverse osmosis membrane designed to fit standard under-sink RO systems. With a 0.0001 micron filtration capability, it removes over 99% of contaminants including lead and chlorine, delivering up to 75 gallons of purified water daily. Engineered for durability and backed by lifetime support, it ensures safe, clean drinking water for modern households.

Specifications

ASIN	B007TBB69W
Benefits	Removes wide spectrum of impurities and contaminants for safer water consumption
Best Sellers Rank	28,721 in DIY & Tools ( See Top 100 in DIY & Tools ) 13 in Under-Sink Filters
Brand Name	iSpring
Compatible Water Purifier Models	iSpring RCC7
Country Of Origin	China
Customer Reviews	4.7 4.7 out of 5 stars (2,116)
EU Spare Part Availability Duration	2 Years
External Testing Certification	NSF
Global Trade Identification Number	00662425048120
Item Dimensions D x W x H	5D x 5W x 10H centimetres
Item Weight	191 g
Manufacturer	iSpring
Manufacturer Part Number	MC7
Material Type	Polypropylene (PP)
Model Number	MC7
Number of Items	1
Set Name	Single
UPC	662425048120
Unit Count	1.0 count

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