Little Giant® Trough-O-Matic® | Stock Water Tank Float Valve | Watering Tank with Aluminum Housing and Expansion Brackets | Made in USA
Condition: New
Buy Now, Pay Later
As low as
$7
/ mo
Learn more
- – 4-month term
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Selected Option
Free shipping on this product
30-day returns
Learn more
FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
In Stock.
Arrives
Tuesday, Jun 9
Recently Viewed
Style: Float Valve with Expansion Brackets
Features
- Float Valve automatically controls water level for most plastic and metal stock tanks, troughs, barrels, and pans
- Flows up to 245 gallons per hour, operates between 20 and 50 psi
- Durable aluminum housing
- Accepts a standard 3/4 inch garden hose
- Also available in plastic housing (Item No. TM825, sold separately)
Material: Aluminum
Brand: Little Giant
Item dimensions L x W x H: 3 x 7.5 x 3.5 inches
Exterior Finish: Aluminum
Maximum Operating Pressure: 50 Pound per Square Inch
Number of Ports: 2
Outlet Connection Size: 0.75 Inches
Global Trade Identification Number: 10
Unit Count: 1.0 Count
Manufacturer: Miller Manufacturing
Exterior Finish: Aluminum
Maximum Pressure: 50 Pound per Square Inch
Number of Ports: 2
Valve Type: Float Valve
Item Dimensions: 3 x 7.5 x 3.5 inches
Outlet Connection Size: 0.75 Inches
Size: One Size
Item Weight: 1.75 Pounds
Material Type: Aluminum
Brand Name: Little Giant
Model Number: LG-TM830-PRNT
Global Trade Identification Number: 10
Manufacturer: Miller Manufacturing
UPC: 084369083010
Manufacturer Part Number: TM830T
Number of Pieces: 1
Item Type Name: Float Valve
Unit Count: 1.0 Count
Included Components: Water tank float valve
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Jun 9
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
Style: Float Valve with Expansion Brackets
I don't normally leave reviews, however, in this case I felt obligated to help because this product has the potential to be great. I was very happy with the quality of the product and it worked very well for me.... However - there are some very important things to note. 1) You must use a water pressure regulator if your current pressure is not appropriate. The product clearly states that it operates between 20-50 PSI. If you do not know what your water pressure is, just buy an RV regulator for $12. Most of them are 40-50 PSI. A water pressure tester is also about the same price, so just get the regulator and avoid the problem. If you add a regulator when it is not needed, it will be fine. If you do not add a regulator and your pressure is too high, this unit will not be able to stop the flow of water, and it will continue to run. 2) You cannot allow your hose to bend to the side, thus stressing the inlet/threaded portion of the housing. Over time, this type of stress will eventually destroy anything. If you cannot rig your hose from an overhead position, you will need to zip tie it, clamp it, or route it in such a way that it is coming straight down to the top of the housing (not pulling away from the inlet). You do not want your hose to be pulling or pushing with any resistance whatsoever. 3) Before installing, buy a set of quick connect couplers. You will need both male and female ends initially. If the side connected to the float housing corrodes, no big deal. Just buy another $3 male end coupler when you replace it and throw the old one away. I would not screw your hose directly to the float housing. Brass will corrode to aluminum. Brass will not corrode to brass. 4) If your pkg does not contain the rubber O-ring inside of the hose inlet, you will need to purchase one. Mine came with it, and I also purchased a pkg of replacements. I intend on replacing it as needed, like I do with all my hoses, etc.. A PM that will only cost you about $0.25/year. 5) If you have livestock, they will find a way to destroy everything in time. Either build a guard around your float, spigot & hose, or - do something to prevent the animals from reaching the hose or any mechanical components. I was able to place my tank directly under the spigot, so I just built a cabinet around my spigot, hose and float. Another option would be to keep the portion of the stock tank (where the float is connected) on the outside of the pen, fence or stall. Hopefully this helps and you will have the same success I had with it. I figure, if I have to replace it every year, no problem! Just think of the peace of mind you will get from around $50/year worth of parts. If it lasts any longer, I will consider it a bonus! Mike, from Ohio, signing out ; )
...
show more
Reviewed in the United States on June 28, 2024 by Michael Coyle
Style: Float Valve with Expansion Brackets
We have this and it’s been working for 3 years now, definitely would buy another one. No more over filling the horse trough!
Reviewed in the United States on April 2, 2026 by Amazon Customer
Style: Float Valve with Expansion Brackets
Very well built and looks like it will last a long time.
Reviewed in the United States on November 5, 2025 by Mike Sugrue
Style: Float Valve with Expansion Brackets
I got two of these to help the watering chores. One unit is outside in the pasture, and one inside the barn in a stall. They have been used for a few months now and are working wonderfully. It stops the water flow as needed. It is pretty small, so it doesn't impede on the water trough usage for the horse. So far, it has been doing well throughout the seasons so it seems durable. It was inexpensive for what it is, so great value for the money.
...
show more
Reviewed in the United States on August 10, 2025 by Monja Bastan
Style: Float Valve with Expansion Brackets
I've had this installed for several days now and it seems to work fine. I ordered this model since the item is metal rather than cheaper plastic. Plastic wouldn't hold up very well under the intense Florida sun. The float assembly itself is plastic which is shielded by the metal cover. I do wish it was also constructed of metal. The hole that the water flows thru to refill the tank is only about 3/16" which is fine for the refill function but I used a hose for the initial fill of my 100 gallon galvanized tank. If it last for at least a year then I'll purchase again. I think it's a good value over the cheaper plastic ones.
...
show more
Reviewed in the United States on June 19, 2024 by Amazon Customer
Style: Float Valve with Expansion Brackets
Works as described, note too much water pressure will cause leakage.
Reviewed in the United States on August 27, 2025 by Placeholder
Style: Float Valve with Expansion Brackets
fast delivery just what i ordered
Reviewed in the United States on April 9, 2026 by Richard Dillon
Style: Float Valve with Expansion Brackets
Works as advertised, I used it for a rain barrel to a plastic trough for my dogs. I was worried the low pressure from being gravity fed would not work, but it works perfectly.
Reviewed in the United States on October 11, 2025 by Mr. Henderson