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

Product ID: 46943067

Details

External Testing Certification
ANSI NSF
Item Weight
7 Ounces
Material
Polyamide
Product Benefits
Reduces TDS
Product Dimensions
3.5"D x 13.8"W

💧100 GPD high flow rate

⚙️Universal 11.75" x 1.75" size

🛡️97% stabilized salt rejection

$96.90

Duties & taxes included

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Sold byAmazon EcuadorDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💧 Elevate your hydration game with next-level purity and flow!

SEAMLESS COMPATIBILITY - Fits standard 1812/2012 RO housings—upgrade your system without hassle.
LONG LASTING RELIABILITY - Durable membrane with 24-36 months lifespan to keep your water pure longer.
CERTIFIED QUALITY ASSURANCE - NSF/ANSI 58 tested and certified for trusted, safe drinking water.
PURE PERFORMANCE EVERY DROP - Removes 99%+ contaminants including heavy metals & harmful minerals for crystal-clear hydration.
OPTIMIZED FOR HOME LIGHT COMMERCIAL - Perfect for undersink RO systems and even maple syrup filtration with ideal pressure & temperature specs.

The Membrane Solutions 100 GPD RO Membrane is a premium reverse osmosis filter element made from 100% food-grade Thin Film Composite material. It delivers a high flow rate of 100 gallons per day with a 97% stabilized salt rejection rate, effectively removing over 99% of contaminants including heavy metals and harmful minerals. Designed to fit standard 11.75" x 1.75" RO housings, it is NSF/ANSI 58 certified and offers a long service life of 24 to 36 months, making it an ideal replacement for residential undersink water filtration systems.

Specifications

ASIN	B0719KZ65G
Best Sellers Rank	#10,229 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #81 in Replacement Under-Sink Water Filters
Brand Name	Membrane Solutions
Compatible Water Purifier Models	APEC Water Systems ROES-50
Customer Reviews	4.6 4.6 out of 5 stars (3,215)
External Testing Certification	ANSI, NSF
Global Trade Identification Number	00850071881844
Included Components	membrane
Item Dimensions D x W x H	3.5"D x 13.8"W x 2.8"H
Item Type Name	Membrane Solutions 100 GPD RO Membrane, Reverse Osmosis Membrane Element 11.75" x 1.75" Water Filter Replacement for Undersink Home Drinking RO Water Filtration System
Item Weight	7 Ounces
Manufacturer	Membrane Solutions Corp
Manufacturer Part Number	100GPD
Material Type	Polyamide Thin-Film Composite
Model Number	WS02
Number of Items	1
Product Benefits	Reduces TDS
UPC	850071881844
Unit Count	1.0 Count

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