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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Description

💧 Elevate your hydration game with the ultimate RO membrane upgrade!

LONG LASTING FRESHNESS - Enjoy up to 3 years of premium water quality with durable, food-grade Thin Film Composite membrane technology.
ELITE CONTAMINANT DEFENSE - Blocks 97% of salts and 99%+ of heavy metals and harmful impurities for peace of mind in every sip.
PURE HYDRATION POWERHOUSE - Delivers 75 gallons per day of crystal-clear water to keep you refreshed and productive.
SEAMLESS FIT ZERO HASSLE - Industry-standard size fits most undersink RO systems—upgrade your filtration without the guesswork.
SUPPORT THAT HAS YOUR BACK - American-based expert assistance ensures your RO system runs flawlessly—welcome to the Membrane Solutions family.

The Membrane Solutions 75 GPD Reverse Osmosis Membrane is a premium 11.75" x 1.75" replacement filter designed for undersink home RO systems. Crafted from 100% food-grade Thin Film Composite material, it delivers a high flow rate of 75 gallons per day while rejecting 97% of salts and over 99% of heavy metals and impurities. Compatible with most standard RO housings, this NSF-certified membrane offers up to 36 months of reliable, clean water performance backed by dedicated American customer support.

Specifications

ASIN	B0719H4BVL
Best Sellers Rank	#10,916 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #83 in Replacement Under-Sink Water Filters
Brand	Membrane Solutions
Brand Name	Membrane Solutions
Compatible Water Purifier Models	APEC Water Systems ROES-50, APEC Water Systems ROES-PH75
Customer Reviews	4.6 out of 5 stars 3,194 Reviews
EU Spare Part Availability Duration	2 Years
External Testing Certification	NSF
Global Trade Identification Number	00850071881837
Item Dimensions D x W x H	1.75"D x 1.75"W x 11.75"H
Item Weight	6.4 Ounces
Manufacturer	Membrane Solutions Corp
Manufacturer Part Number	43235-33608
Material	Polyamide Thin-Film Composite
Material Type	Polyamide Thin-Film Composite
Model Number	WS02
Number of Items	1
Product Benefits	Provides safe-clean drinking water by reducing hundreds of impurities including heavy metals, organic materials, and harmful minerals Product Benefits Provides safe-clean drinking water by reducing hundreds of impurities including heavy metals, organic materials, and harmful minerals See more
Product Dimensions	1.75"D x 1.75"W x 11.75"H
Set Name	75GPD
UPC	850071881837
Unit Count	1.0 Count

Reviews

F**D

27.04.2026

M**R

15.03.2026

H**L

21.02.2026

M**D

28.02.2026

S**D

21.06.2025

M**D

15.03.2026

C**N

2.03.2026

A**A

25.12.2025

R**N

9.11.2025

M**N

11.03.2025

R**I

6.11.2022

M**K

26.01.2021

C**R

11.02.2025

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Membrane Solutions 75 GPD RO Membrane, Reverse Osmosis Membrane Element 11.75" x 1.75" Water Filter Replacement for Undersink Home Drinking RO Water Filtration System

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