1-800-433-6340 or
Shopping Cart (0)

1/2" Hudson Valve

, V-S
QC Supply Part #: 120031
Shipping: Standard
Availability: In stock

Hudson Valve maintains fluid level in various applications, replacing ball float valves.


The Hudson Valve is a Damage-Proof Automatic Valve Used for Fluid Control.

This 1/2" universal Hudson Valve maintains fluid levels in various applications, replacing ball float valves. The Hudson Valve's internal parts are made of ABS plastic, EPDM rubber & stainless steel. Fluid levels force a float to rise and close the diaphragm chamber as the diaphragm expands to stop the incoming flow. When the fluid level drops, the diaphragm escape is opened and allows the fluid to fill the tank. The Hudson Valve is resistant to freezing.

We also carry the 1/2" Hudson Valve Repair Kit (#120009).

Additional Benefits:

  • No float ball or lever arm
  • No exterior moving parts
  • Installs in seconds
  • Rust-proof
  • Freezing won't damage it
  • Indestructible
  • Anti-siphon
  • Made in the USA


  • Thread: 1/2" FPT
  • Height: 5"
  • Diameter: 3"
  • PSI: 8-65
  • Max Fluid Temperature: 90° F


  • Livestock Tanks
  • Evaporative Coolers
  • Holding Tanks
  • Landscaping
  • Ponds & Swimming Pools
  • Fountains
  • Car Washes
  • Aquariums
  • Irrigation Systems
  • Grounds Maintenance
Brand Hudson Valve
Manufacturer Part Number V-S



Manuals & Resources


Customer Reviews

  • 5 Stars

    Good product

    Review by on Mar 26, 2017

    I needed a Hudson 1.5 float valve for my waterfall pond and found it on QC Supply at a resonable cost and quck delivery. Valve works well and arrived within a couple of days.

  • 5 Stars

    Hudson Valve

    Review by on Nov 5, 2016

    This is a great water shut off, just mount it to the level you desire in whatever your filling with water & this will keep you topped off all the time with no worries or overfilling. Either mount it to the height you need or get a mounting bracket to make it more easy.

  • 5 Stars

    Great Product

    Review by on Aug 15, 2016

    This valve has saved me many days of wet floors. It works great.

  • 5 Stars

    good valve for fountain

    Review by on Apr 28, 2016

    Use this valve for landscape water feature, works great

  • 5 Stars

    works good

    Review by on Apr 27, 2016

    works good

  • 4 Stars


    Review by on Sep 22, 2015

    I just needed the valve, as I have the mounting bracket already. QC had it, at a reasonable price, and got it to me in good time. Works like it is supposed to, and my water pressure (60psi) is at the top limit for the unit.

  • 1 Stars

    Not impressed

    Review by on Jul 26, 2015

    If you have hard water, not the product to use. Used it for 7 months and had to throw it out. Leaks like the valve is wide open.

  • 4 Stars

    Reliable valve

    Review by on Jul 23, 2015

    I have used this valve for a year for a small fountain in our back yard. Initially had a problem with hydraulic vibration due to delivery pressure above 100 psi. Once I reduced the water pressure to 65 psi via a reducing valve, the 1/2" Hudson valve worked without issue.

  • 4 Stars

    Worked well

    Review by on Jun 11, 2015

    Had to get the right size adapter to hook up to my tubing, then worked well.

  • 5 Stars


    Review by on Apr 30, 2015

    Just installed. Level conrol valve seems to work OK and service & delivery were excellent.

  • 5 Stars

    reliable product from QC Supply. fast ship/great service

    Review by on Apr 4, 2015

    Always found reliable competitive priced products from Hudson. There are repair kits available for most of their products if needed. If you can change a light bulb you can repair this product outside of the manufacturer warranty period.

  • 4 Stars

    Great price, fast shipping! Thanks!!

    Review by on Oct 21, 2014

    Have ordered these valves from QC Supply in the past. I've tried to rebuild them with no luck. I find it easier to order new ones. Mine last about 1 year, but I think this it due to my wife using bleach in our fountain.

  • 3 Stars

    too early to tell

    Review by on Sep 18, 2014

    Too early to review. QC price and service was great. Have to wait on how the valve performs. Easy to install, works well. But have only had it for two weeks. From other reviews I will plan to replace every two years. Using it in a pond less waterfall so I can tell easily if it does not shut off properly. I connected it with PVC so I hope not to have any issues with the connection leaking. I am in southern California so I do not have to worry about freezing. Could not find any other good alternatives.

  • 3 Stars

    Old product?

    Review by on Sep 12, 2014

    I think this has the "old" top, not the new one that Hudson Valve sells as replacement. It works, but these are the tops that begin to leak at threads. This has happened with 4 of the valves/tops as the replacement top does not fit the valves I have.

  • 5 Stars

    great result

    Review by on Aug 28, 2014

    Product delivered timely and works great

  • 4 Stars

    Valve would not shut off completely

    Review by on Aug 3, 2014

    I already have 3 Hudson valves (2-1" and 1-1/2"). I have had them about 3 years and the 1/2" valve began to leak. I ordered a new 1/2" valve to replace it and when I rec'd and installed it I found that when the float rose to a shut-off position it would continue to trickle and over fill the fountain's reservoir. I made 3 attempts to clean the valve per mfg instructions and could not get it to work properly. I called the manufacturer and told them what I was battling and that because the valve was removed and re-installed so many times it was starting to leak at the fitting as well. Their service is impeccable as I rec'd a new valve in the mail the very next day. Now all 3 valves are working perfectly and I am pleased that "Hudson" stands behind their products.

  • 5 Stars

    Good product

    Review by on May 28, 2014

    The valve works well to keep the appropriate water level in the decorative fountain. I did have to take off the screen to make the valve turn off. The valve is less intrusive than any I have seen.
    It is also inexpensive, which makes it all the better.

  • 5 Stars


    Review by on May 9, 2014

    These valves are a bit more effort to install but they are reliable. Left untouched I will get years of life out of them. Downside is that they are pricy compared to most floats

  • 5 Stars

    Arrived complete and on time

    Review by on May 8, 2014

    We just made our first order from QC Supply. Very pleased with the shipping time, the order was complete and we installed the valve today. Thanks QC

  • 5 Stars

    Great shutoff valve

    Review by on Apr 25, 2014

    Works great on my fishpond. I purchased this to replace existing value that was proprietary to the pond kit manufacturer. This valve is exactly the same. At half the cost

  • 4 Stars

    So far so good

    Review by on Apr 8, 2014

    So far so good. Using this to fill my bubbler fountain. So far it seems to do a great job of keeping it topped off.

    Would be nice if it had a better way to mount it that came with it.

  • 1 Stars

    Hudson Valve

    Review by on Mar 18, 2014

    A piece of junk do not buy.

  • 4 Stars

    with quality

    Review by on Jan 6, 2014

    on time delivery; with good packing

  • 1 Stars

    not satisfied

    Review by on Oct 6, 2013

    I purchased 2 units and one of them is defective, keeps leaking after the level is reached.

  • 4 Stars

    Does the Job!

    Review by on Sep 26, 2013

    Use it in a pondless waterfall. Love the compact design. Change mine out every 2 years. Don't bother rebuilding. QC has the best service and price.

  • 1 Stars

    Does not work

    Review by on Sep 25, 2013

    Does not shut off completely. Allows water to continue to fill.

  • 1 Stars

    Good idea but doesn't work correctly

    Review by on Sep 14, 2013

    The Hudson Valve does not maintain a constant level of water. The valve sometimes does not completely shut off the water supply. I will return it.

  • 4 Stars

    Pretty Good

    Review by on Aug 7, 2013

    This is a replacement for the old 1/2" Hudson valve thatlasted for 8 years in a pond application. QC Supply was prompt in shipment and competitivly priced.

  • 4 Stars

    Great valve but not really repairable

    Review by on Jul 5, 2013

    I have used both the 1/2 and 1 inch valves. Been using them for over ten years to keep a fish pond topped off. After 4 years of trouble free service the 1/2 inch valve would not shut off. I installed a repair kit but it still leaked. The repair kits don't work for the 1 inch valves either. Don't waste your money on repair kits, just buy a spare valve. QC Supply has the lowest price for the valves and fast service. They got my last shipment to me within a couple of days.

  • 4 Stars

    Very good

    Review by on Jun 29, 2013

    Been using 3-4 years in 5,000 gal Koi pond. Works great, but needs dis-assembly/cleaning periodically as the well water contaminants clog it after a year or so, so it won't shut off. This new one is a spare so I can take my time with the maintenance.

    QC price was best, delivery was great!

  • 5 Stars

    Excellent Product

    Review by on Jun 23, 2013

    Briliilant but simple design. Well made (yes - Made in the USA). Easy to install. Reasonable price. If it can last 2 - 3 years, I will be very happy. Highly recommended.

  • 3 Stars

    Works, but a little noisy.

    Review by on Jun 23, 2013

    I've had a couple of these. The first one lasted about 1.5 years. I've had the second one about a year, and it's started "chattering" every time it fills the pond. Really annoying and loud. Sounds like a squirrel that won't shut up. Not sure how to fix this.

  • 4 Stars

    Worked as I needed it to

    Review by on Jun 22, 2013

    I troubleshot some back yard waterfalls - high water bill. Installer had submersed valve. One was leaking at the fitting area of the body and we replaced it. Mounted them in an inverted deck drain grill for a stable stand (flat square with grill and round upper when inverted) - problem solved. Pleased with valve operation and design used with our improvised stand should keep them free of interference.

  • 4 Stars

    OK, but make sure of water pressure

    Review by on Jun 4, 2013

    Works well, but make sure you have enough water pressure to the valve's inlet, as attaching to my lawn drip line was weak and I thought it was defective at first. Attaching directly to outside faucet fixed the problem.

  • 4 Stars

    works great

    Review by on Jun 1, 2013

    for a 2500gal pond...works great and easy to install

  • 5 Stars

    Simple and Reliable Shutoff Valve

    Review by on May 31, 2013

    I installed this valve in a fountain application and in presently dialing in the level. It is perfect for this application. The build is solid. The valve was delivered when promised.

  • 4 Stars

    I'm pleased

    Review by on Mar 30, 2013

    Worked for 6 years for me.

  • 5 Stars

    Great product

    Review by on Mar 22, 2013

    I have been using these for a lot of years and they work good. I use then in water fountains and they have a low profile and seldom ever fail.

  • 5 Stars


    Review by on Mar 16, 2013

    As advertised. Was a replacement part, so kind of a no brainier to order.

  • 5 Stars

    Excellent valve, excellent seller.

    Review by on Sep 19, 2012

    I have used this valve on several ponds I have constructed and they are wonderful and just keep working. I would recommend it to anyone building a pond.

  • 5 Stars


    Review by on Sep 9, 2012

    Seems like a good solid product. Like the fact that no lever arms and floats for the dogs to break off when jumping into Koi pond.

  • 5 Stars

    works great

    Review by on Aug 31, 2012

    delivered promptly. works great.

  • 3 Stars


    Review by on Jul 20, 2012

    I bought 3 of these about 6 months ago. I didn't get them installed until recently. One of them slowly leaked and even after cleaning and trying several times to fix, I gave up and ordered another one. The new one worked.

  • 5 Stars

    Works great and lasts many years.

    Review by on Jul 12, 2012

    This is my second one. It works great and easy to install. The first one lasted seven years.

  • 4 Stars

    Worked for 5 yrs

    Review by on Jul 2, 2012

    This valve worked for five years to control the water level in my pondless stream. Then it no longer fully shut off as it should have. I tried repairing it with the 4-piece repair kit but still it failed to fully shut off as required. Seeing that others find it lasting only a couple of years, I guess I should not complain.

  • 3 Stars

    Works but not durable

    Review by on May 3, 2012

    Pond we have freezes in the winter, Filler works well, but can be difficult after first thaw of spring. Will run and not shut off at first

  • 2 Stars

    works well but not durable

    Review by on Mar 30, 2012

    Works better than other devices, but only expect one year until replacement is needed.

  • 4 Stars


    Review by on Mar 27, 2012

    I like the 1/2 and 1 inch but need to replace every 1.5 years

  • 3 Stars

    Works fine, with a few quirks

    Review by on Mar 22, 2012

    Works as advertised. Has a tendency to chatter and pulsate when it gets close to cutoff.

  • 2 Stars

    Good, but not durable

    Review by on Dec 5, 2011

    We've had this valve for only 2 years, under moderate use, and it completely broke down. It works well, but should last longer.

  • 4 Stars

    Looks rugged

    Review by on May 12, 2011

    The thing looks pretty well made. Easy to fit. I'll let you know in a couple of years about its endurance!

  • 5 Stars

    Great product

    Review by on Sep 10, 2010

    This valve does the trick! QC Supply had the most competitive price online. FAST shipping!!

  • 4 Stars

    Works as advertised

    Review by on Aug 3, 2009

    Could have slotted bracket molded on case for mounting on flat surface.

Write Your Own Review

How do you rate this product?

Leave a review

* Required Fields

You might also like: