Will this work for the aquatic life buddie?

Yes it is still working well for my aquatic life ro buddie.

Will this work with hydro logic stealth ro200?

Yes,our 100GPD-2012 size membrane is perfectly compatible with Hydro-logic's Stealth 200 Reverse Osmosis System.

Do any of your ro membranes fit the ao smith ao-us-ro-mb-4000

I am unfamiliar with the system you were referring. However I can offer you this. This is the standard in filtration systems as I know it. If the membrane meaning the RO membrane can fit in a housing that is designed for it then usually that means it will work. So an example would be if you had a 10 inch long 2 1/2 inch diameter housing for a membrane you would roughly need a 10 inch long 2 1/2 inch wide membrane lol. Something helpful for the future as well. Whenever I purchase anything I keep the instruction manual for it in the same place for everything I own. That way if I have a question I can simply go to my “library” and find my answer lol.

Will this work with an ultima vii system?

Your system makes 24gpd, The membrane filter your asking about makes 50gpd. You can upgrade your system to 50gpd by making some changes to the flow restrictor. Go to utube and view numerous videos on RO systmes. The filter will work only after some changes to your system.

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Membrane Solutions Reverse Osmosis 50GPD, RO 50 GPD Water Filter Universal Compatible Replacement RO System, 1-Pack

Membrane Solutions Reverse Osmosis 50GPD, RO 50 GPD Water Filter Universal Compatible Replacement RO System, 1-Pack

Product ID: 274783843

Details

External testing certification
NSF
Item weight
204 g
Material
Polyamide
Product benefits
Provides water
Product dimensions
18D x 18W x

💧50 GPD high flow rate

🔧Universal 1812 size fit

🛡️97% salt rejection purity

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$61.22

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Description

💧 Elevate your water, elevate your life—pure hydration, zero compromises.

LONG LASTING DURABILITY - Enjoy 2-3 years of premium filtration with a robust, explosion-proof membrane design.
UNIVERSAL COMPATIBILITY - Fits most standard RO systems (1812 size) so upgrading your filter is hassle-free and seamless.
DEDICATED AMERICAN SUPPORT - Get expert help whenever you need it—because your clean water journey deserves VIP treatment.
ULTRA PURE 97 SALT REJECTION - Filters out 99%+ impurities including heavy metals and harmful minerals for health-conscious living.
PREMIUM 50 GALLONS PER DAY FLOW - Keeps your hydration game strong with a steady 50 GPD output—never run dry on clean water.

The Membrane Solutions 50GPD Reverse Osmosis Membrane delivers industry-leading water purification with a 97% salt rejection rate and 50 gallons per day flow. Made from 100% food-grade Thin Film Composite material, it fits universally in standard 1812 RO housings and offers a long lifespan of 24-36 months. Tested to NSF/ANSI 58 standards, it ensures safe, clean drinking water by removing over 99% of contaminants including heavy metals and harmful minerals. Backed by American-based customer support, this membrane is the smart upgrade for any residential RO system.

Specifications

ASIN	B06XC9BVVC
Best Sellers Rank	#80,190 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #277 in Replacement Water Filters
Brand	Membrane Solutions
Brand Name	Membrane Solutions
Compatible Water Purifier Models	APEC Water Systems ROES-50
Customer Reviews	4.6 out of 5 stars 2,911 Reviews
EU Spare Part Availability Duration	2 Years
External Testing Certification	NSF
External testing certification	NSF
Global Trade Identification Number	00850071881820
Item Dimensions D x W x H	18D x 18W x 118H millimeters
Item Weight	0.45 Pounds
Item weight	0.45 Pounds
Manufacturer	Membrane Solutions
Manufacturer Part Number	MSRS001
Material	Polyamide Thin-Film Composite
Material Type	Polyamide Thin-Film Composite
Model Number	ROULP-1812-50
Number of Items	1
Product Benefits	Removes up to 97% of impurities and contaminants, with easy installation for user convenience.
Product dimensions	18D x 18W x 118H millimeters
Set Name	Single
UPC	850071881820
Unit Count	1.0 Count

Reviews

R**N

Good product, great price

Works well

9.11.2025

M**N

Good R/O Membrane Replacement

Fits and works as expected.

11.03.2025

R**I

المنتج 50 جالون ماينفع

الفلتر كفو وجودة ممتازة بس 50 جالون لا انصحك فيه خذ نفس المنتج بس 75 جالون افضل من هذا

6.11.2022

M**K

Improved taste of water significantly

Seems to be working well, only been running it for 1 month. Haven’t bothered testing the water yet.

26.01.2021

F**D

RO membrane cartridge.

Perfect fit for my RO BUDDIE. Easy to install. Output RO water PPM is around 4 to 5 ppm. Great way to rejuvenate my RO system. Great value.

27.04.2026

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