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💧 Stay ahead of the curve with smart water control—never worry about overflow again!
The AquaticLife Auto Shut-Off Float Valve Kit is a premium, all-in-one solution designed for RO and RO/DI reverse osmosis systems. Featuring an automatic float valve that activates water flow only when needed, it prevents overflow and conserves water. The kit includes all necessary components with universal ¼” press-fit connectors for quick installation, and it operates efficiently within 40-80 PSI. Trusted by thousands, this durable plastic valve kit ensures seamless integration and reliable performance for aquariums, tanks, and containers.


































| ASIN | B00HZ6A476 |
| Best Sellers Rank | #32,670 in Pet Supplies ( See Top 100 in Pet Supplies ) #345 in Aquarium Filter Accessories |
| Brand | Aquatic Life |
| Brand Name | Aquatic Life |
| Connector Type | Press |
| Customer Reviews | 4.5 out of 5 stars 391 Reviews |
| Global Trade Identification Number | 00810957013004 |
| Included Components | Aquatic Life Automatic Shut-Off Float Valve Kit - .25" |
| Inlet Connection Size | 0.25 inches |
| Inlet Connection Type | Press |
| Item Dimensions | 6 x 4 x 2 inches |
| Item Type Name | Multi, Model: 500300 |
| Item Weight | 9.07 g |
| Item dimensions L x W x H | 6 x 4 x 2 inches |
| Manufacturer | Aquatic Life |
| Manufacturer Part Number | 500300 |
| Manufacturer Warranty Description | Manufacturer Warranty |
| Material | Plastic |
| Material Type | Plastic |
| Maximum Pressure | 80 psi |
| Model Number | 500300 |
| Number of Packs | 1 |
| Number of Pieces | 5 |
| Number of Ports | 2 |
| Outlet Connection Size | 0.25 inches |
| Outlet Connection Type | Press |
| Set Name | AquaticLife Auto Shut-Off Float Valve Kit |
| Size | 5 Piece set |
| Thread Size | 1/4 inch |
| Thread Type | Press |
| UPC | 810957013004 |
| Unit Count | 1 Count |
| Valve Type | Float Valve |
P**O
exactly as advertised, works great
exactly as advertised, works great. Complete kit ready to install, if you’re looking to for a way to periodically fill your auto top off fresh water system this is a good setup. For best efficiency you want to run your RODI for a long time, instead of short bursts. Let the ATO tank get down to 1/4 full then turn on your RO/DI and walk away. This gives peace of mind your ATO tank won’t over flow. When its done turn off the RO/DI feed.
S**.
Would recommend
After trying another brand ACV I went back to aquatic life. Solid, works as it should and for the parts you get well worth it
W**E
Works exactly as planned
I use this in combination with an RO system and 100-gallon stock tank as a water reservoir for my aquariums when I need to do a water change. This float valve shuts off the RO system when the stock tank is full. This set is nice because it has everything I needed to have the auto-shutoff system and the components seem solid. Very pleased with the outcome.
L**E
Works great if you get all the pieces
This product works great, if you get all of the pieces. I say this because I did not realize I did not have all of the pieces for this until it was all hooked up and water was all over my kitchen floor. The product itself did what it was supposed to do. When the water level reached the configured cut off level the water stopped flowing into the reservoir. As soon as this happened the hose shot out of the float bulk head connection. It seems m package arrived with a couple of pieces missing as evidenced from the product picture. It was missing the little blue clip that locks the hose in and it looks like there was another piece that the blue clip would actually attach to. Other than that, I highly recommend this product.
L**X
Hands down #1 thing anybody in reefing should have...
Ok so after about 7-8 years of reefing and always using an rodi system I've never had an auto shutoff, I've had floats that would stop the water and it would just keep going through the waste line down the drain. It turn I was changing filters more frequently. Also I know I'm not the only reefing who has flooded a room or rooms on their house due to forgetting your rodi is on 😂 it's not if your going to it's when your going to! Needless to say this float and shutoff are honestly top quality for your rodi system. It fills my bin up once the float shuts fully it builds pressure into a diaphragm inside of the shutoff which closes the feed line into your rodi. So no more just wasting filters and good water. It's cut my water bill down, buying less filters less frequently, 100% worth the money you'll spend because within 6 months you will be saving the same amount if not more on wasted water alone not including buying more filters. Again this is a hands down must in my opinion for reefing or anything your using an rodi system for to fill up a container that you may forget. No more overflowing or wasting water. Will be using these from now on as long as I use an rodi system.
D**R
So e z to use
Easy to install works perfectly that's what it's supposed to do
P**B
Does a great job and is priced well
Why did I wait so long to buy this for my RODI setup. Installs easily, no leaks and all at a great price. No more water on my floors thanks to this purchase!
S**G
DO NOT use this for your RO unit. Flawed Design.
The unit appears to work: it slows the water inflow to a drip as the water line approaches to the set float level. But the problem is, RO units will continue to run and drain waste water even when it is producing drops of filtered water. The amount of waste water put to drain is the same regardless whether the RO unit is running at full speed or at a drip rate. Imagine how long it takes for the drip to fully reach the water level to fully stop the float valve; we're talking about hours of additional waste water each time we use it, or hundreds of gallons of water wasted. I'd imagine not a lot of people would notice this because waste water draining often is not visible since it is usually plumbed directly to a concealed drain line. For the sake of water conservation, the seller should really stop selling this product. Unaware users could be wasting hundreds or thousands of gallons of water each month. I bought two! Returning one; unfortunately the other one outside of return window. Glad I caught that little detail in time. Otherwise, I'll faint looking at my water bill at the end of the month!
T**I
Excellent produit
Excellent produit. Identique à la description et aux photos. Bonne qualité. Très satisfait.
G**F
DOES NOT WORK
As per the other reviews, it does not work. It slows down the supply drastically, then when the float valve shuts, it makes noise but does not stop the RO flow. Avoid.
R**U
Flotador de relleno
Un kit completo, buena calidad y completo no le falta nada
M**N
So far so good
So far so good...item arrived in the time specified - I am only using the ball valve part of this unit for my RODI and was easy to install - I like that there are no metal parts on this unit which is paramount for reef aquaria...first run through works as intended
J**N
Works perfectly
Garbage instructions. Once you figure it out, works great
Trustpilot
1 month ago
3 weeks ago