What is the difference between the mc7 and mc1? i have an rcc7 unit that i purchased 2 years ago

Hi Gregory, the the difference between the two membranes is the gallons per day produced; the MC1 will fill the ro storage tank a just a couple minutes quicker than the MC7. Either membrane is compatible with the RCC7.

When should this be changed?

It should last 2 to 3 years. However, I use a TDS meter to monitor pollutant levels. The water in Alpine, TX is not very good according to the TDS readings. I change my RO membrane twice a year and the other filters about every 3 months. I am probably a bit of a fanatic though. Check out 123filter.com for filter information. I stopped buying from Amazon because I got a better price and their customer service is awesome. Amazon customer service is excellent but 123filter is in the RO business. Very helpful for problem solving.

Are there any specific instructions? Do you have to run water through it awhile before using?

There will be specific instructions but in any case it is always a good idea to flush the system few a few minutes before using. The important thing is to keep the membrane wet. Tech support at isptings is awesome too.

Will this fit ispring rcc7ak?

Hi Elizabeth, Thank you for your question. Yes, this is the membrane filter used in the system rcc7ak. Thanks, iSpring Water Systems

Mc7 | Desertcart Seychelles

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Description

💧 Elevate your water game—because your health deserves the purest sip!

RELIABLE FLOW - Generates up to 75 gallons of purified water daily—enough for your whole household’s hydration needs.
PURE POWERHOUSE - Removes up to 99% of 1,000+ contaminants including lead, chlorine & fluoride for crystal-clear hydration.
FITS LIKE A GLOVE - Standard 11.75” x 1.75” size ensures seamless compatibility with most under-sink RO systems.
WORRY FREE WARRANTY - Activate lifetime free tech support and manufacturer warranty for peace of mind and lasting performance.
PRECISION FILTRATION - Ultra-fine 0.0001 micron membrane lets only water molecules pass—nothing else gets through.

The Greatwell Reverse Osmosis Membrane by iSpring is a high-capacity, food-grade filtration membrane that removes up to 99% of over 1,000 contaminants including lead, chlorine, and fluoride. With a microscopic 0.0001 micron pore size and a daily output of 75 gallons, it fits standard under-sink RO systems and delivers reliable, clean drinking water. Tested to NSF/ANSI standards and backed by lifetime tech support, it offers a durable 2-3 year lifespan tailored for modern households seeking premium water quality.

Specifications

ASIN	B007TBB69W
Best Sellers Rank	#80,026 in Kitchen ( See Top 100 in Kitchen ) #249 in Water Filter Cartridges
Brand	iSpring
Brand Name	iSpring
Compatible Water Purifier Models	iSpring RCC7
Customer Reviews	4.8 out of 5 stars 2,095 Reviews
EU Spare Part Availability Duration	3 Years
External Testing Certification	ANSI
External testing certification	ANSI
Global Trade Identification Number	00662425048120
Included Components	RO membrane
Item Dimensions D x W x H	44D x 44W x 298H millimeters
Item Type Name	, 75 GPD, 11.75” X 1.75”
Item Weight	191 g
Item weight	191 g
Manufacturer	iSpring
Manufacturer Part Number	MC7
Material	Lead
Material Type	Lead
Model Number	MC7
Number of Items	1
Product Benefits	Removes up to 99% of over 1,000 contaminants, including lead, chlorine, fluoride, arsenic, and others
Product benefits	Removes up to 99% of over 1,000 contaminants, including lead, chlorine, fluoride, arsenic, and others Product benefits Removes up to 99% of over 1,000 contaminants, including lead, chlorine, fluoride, arsenic, and others See more
Product dimensions	44D x 44W x 298H millimeters
Set Name	Single
UPC	662425048120
Unit Count	1 Count

Reviews

H**Y

Fué Compatible con mi ósmosi inversa marca: Roto..plss

Excelente producto!! Funciona muy bien!

17.03.2019

M**R

Calidad....

Muy buena membrana, me dura perfectamente 2 años sin problemas.

3.01.2026

T**Z

très bien

très bien RAS

22.10.2025

S**M

ممتاز مواصفات أمريكية

أجود وأضمن من الصيني اللي في السوق ، كنت أطلبه من أمريكا والان متوفر هنا ، نصيحة لا تبخل على نفسك وابحث عن الجودة هذا ماء تشربه 👍😎

16.09.2024

A**L

Excellent product & cusotmer service.

Great product(RCC7P-AK), great cusotmer service (special thanks to Nick) for help on fixing my problem. The system runs flaw less once setup is done appropriately. Dont have to do multiple follow ups like other company cusotmer care services.

3.03.2026

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