Reverse Osmosis Float Valve

RO Float Valve
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  • RO Float Valve
  • How to Install a Reverse Osmosis Float Valve - BRStv How-To
  • Float Valve Installation

Reverse Osmosis Float Valve

67% Recommend this to a friend (4 of 6)

SKU: 200065
In Stock: 2,256
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Quick Overview

Why does BRS recommend this?

Float valves are simple to install and can save a lot of water from ending up on the floor. They can be installed in containers as small 1 gallon pails, sumps, and 200 plus gallon commercial storage containers to shut off the flow of water.  Even if you do not have a large storage container a simple 5 gallon bucket with a float valve installed in it will help save money from having water end up on the floor or best case scenario just going down the drain.

Float valves are used to shut down your reverse osmosis system when the float is elevated. Float valves are typically installed on containers like large plastic food grade trash cans or other containers. Installation is as easy as drilling a small hole in the container, sliding the float in and attaching using the included nut.


Full Details


To shut off your waste water you will need an auto shut off valve and check valve. If you don’t have these please purchase the “Auto Shut Off Kit.”


  • 1/4" tubing inlet and free flow outlet
  • .093 orifice
  • Estimated flow rate of 1.5 GPM at 40 PSI
  • Tested to 100 PSI
  • Approximate diameter is 1.4"
  • Flange to float tip measurement is 5.7" - Inlet adds approximately 1" to overall length
  • Comes complete with jam nut, sealing washer, JACO compression nut and polyethylene float
  • Hardware made with 18-8 stainless steel
  • Bodies made of NSF approved PVC
  • Replaceable seals are made of long-wearing, chemical resistant Santoprene rubber.


Note: Requires 1/2" mounting hole


6 Items

  • Best tool to have By Thomas on 6/2/2017

    This float saved me from having a flooded garage. No more waiting for the timer to go off or even forget about it totally.thos float works great. I would never do it again without this in my ro/di storage containers.
  • Life saver By Nick on 12/16/2016

    This is probably one of the best things that I have purchased. I can't even tell you how many times that I have previously left the water running on my RODI unit causing mini floods in my garage. This simple little piece of plastic fits nicely in my 35 gallon water storage tank and was a breeze to set up. I'll never go without one again!
  • The float is a big help. By Dave on 12/11/2016

    My problem is I get distracted and before I know it, the water is overflowing. I installed the float on the side of a 1 gallon pitcher. I can turn my RO/DI system on and forget about it. It only takes about 5-10 minutes to fill the pitcher, but I won't remember for an hour. When I do remember, I find the pitcher full, but not a drop spilled. I pour the pitcher into my 5 gallon bucket and leave it until I remember again. It sure beats mopping the floor!
  • Great By Jon wallace on 10/21/2016

    Peace of mind never forgot to turn your RODI off I've had mine running for just over a year and have never had to mess adjust float and I've never had to mop water from the floor either. If you have a RODI system and you don't have one of these. Get one your wife will be happy you did.
  • Works great, needs instructions By Chap on 8/18/2016

    The install took a few mins. I would've appreciated some instructions included with the package to define the drill bit size and how to connect the tubing. It was easy enough to figure out but I wanted to make sure it was done correctly so there were no leaks!
  • Easy Install By Mark on 8/8/2016

    All you need is a 1/2" drill bit to install this. Works great!! If you have any issues go to Youtube and watch the short BRS video on how to install it.


Ask a question

Product Questions

Does this create a water tight seal? If I ever want to fill the container higher than the level of the float valve later on, is it likely to leak around the valve hole?
Question by: Dan on Jun 8, 2017 7:48:00 PM
These float valves will provide a water-tight seal once the container is filled to the set level of the float.

Have a great day!
Answer by: Zack (Admin) on Jun 13, 2017 10:25:00 PM
Do you carry the diamond coated drill bit for this float valve? And, if so, then what size would it be? Thanks!
Question by: Fred on Jul 19, 2016 12:18:00 PM
Hi Fred,
We do not carry a drill bit for the float valves. You will need to pick up a ½” drill bit, which you can usually find at your local hardware store for pretty cheap.
Thanks for the question and if you have any more, just let us know.
Answer by: Charlie (Admin) on Jul 19, 2016 1:26:00 PM
I want to install this valve so that the water level in my storage container is at a specific height. Where will the final water level be in relation to the 1/2" hole needed to install this float valve?
Question by: Rick on Dec 31, 2016 11:00:00 PM
Great question! The water level will be even with the bottom of the drilled hole. :-)
Answer by: Randy (Admin) on Jan 10, 2017 3:22:00 PM