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.

75g Ro | Desertcart SINGAPORE

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Description

💧 Elevate your hydration game with precision-engineered purity!

FITS LIKE A GLOVE - Industry-standard membrane size ensures seamless compatibility with most residential RO systems.
SUPPORT THAT HAS YOUR BACK - American-based expert assistance available throughout the product’s life—welcome to the Membrane Solutions family.
PURE PERFORMANCE EVERY DROP - Certified NSF/ANSI 58 for trusted water purity that your health demands.
UNMATCHED CONTAMINANT DEFENSE - Eliminates 99%+ impurities including heavy metals & harmful minerals for crystal-clear hydration.
BUILT TO LAST DESIGNED FOR LIFE - Durable membrane lifespan of 24-36 months keeps your water fresh without frequent replacements.

The Membrane Solutions NSF/ANSI 58 Certified 75 GPD Reverse Osmosis Membrane delivers premium water filtration with a 97% salt rejection rate and 99%+ impurity removal. Crafted from 100% food-grade Thin Film Composite material, it fits standard 11.75 x 1.75-inch housings and supports a lifespan of up to 36 months. Compatible with leading RO systems, it ensures safe, clean drinking water backed by expert American customer support.

Specifications

ASIN	B0719H4BVL
Best Sellers Rank	#13,267 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #95 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 3,242 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 Highlight	11.75"x1.75" RO Membrane Water Filter Replacement For UnderSink RO Drinking Water System and Aquarium Reef, 1 Pack
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
Number of Packs	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 Count

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TrustScore 4.5 | 7,300+ reviews

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Received my product in pristine condition. Great service overall.

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