Search  for anything...

Little Giant® Trough-O-Matic® | Stock Water Tank Float Valve | Watering Tank with Aluminum Housing and Expansion Brackets | Made in USA

  • Based on 1,058 reviews
Condition: New
Checking for the best price...
$26.34 Why this price?
Save $3.65 was $29.99

Buy Now, Pay Later


As low as $6 / mo
  • – 4-month term
  • – No impact on credit
  • – 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, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. 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

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.
Fulfilled by Amazon

Arrives Tuesday, Sep 16
Order within 5 hours and 36 minutes
Available payment plans shown during checkout

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: 5E+1 Pound per Square Inch


Number of Ports: 2


Global Trade Identification Number: 10


Manufacturer: Miller Manufacturing


UPC:


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: ‎5E+1 Pound per Square Inch


Number of Ports: ‎2


Global Trade Identification Number: ‎10


Manufacturer: ‎Miller Manufacturing


UPC: ‎084369083010


Part Number: ‎TM830T


Item Weight: ‎1.57 pounds


Product Dimensions: ‎3 x 7.5 x 3.5 inches


Item model number: ‎LG-TM830-PRNT


Is Discontinued By Manufacturer: ‎No


Size: ‎One Size


Color: ‎Black


Style: ‎Float Valve with Expansion Brackets


Shape: ‎Round


Item Package Quantity: ‎1


Number Of Pieces: ‎1


Included Components: ‎Water tank float valve


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: October 15, 2006


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Sep 16

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Here are the FACTS about this product!
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

  • My goats are happy
Oh this saves me so much time! My last one one I had(different brand) busted and would let water spill over. I was having to manually fill it to prevent wasted water. Solid build and was easy to install. It does take a small amount of assembly, but that wasn’t too hard. The fit was perfect for my round trough and it functions like it should. I like the metal design and hopefully it will last through the winter. ... show more
Reviewed in the United States on September 26, 2024 by Troy Williams

  • Strong
Very reliable and does its job!
Reviewed in the United States on January 11, 2025 by David Alan

  • Works perfectly!
We needed an overflow valve for our stock tanks. These are heavy duty, good quality. Easy to install , definitely saves water. Great value for the money
Reviewed in the United States on September 17, 2024 by Janet Hilderbrand

  • Works as advertized
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

  • Good item
Little Giant is the way to go. Works like a charm.
Reviewed in the United States on December 12, 2024 by Johnny Smith

  • Perfect water tank float!
Easy to install, durable in all weather types. Perfect for any water tank.
Reviewed in the United States on November 3, 2024 by Anna

  • Works as it should
Arrived quickly and works as expected.
Reviewed in the United States on December 11, 2024 by Amazon Customer

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...