An automatic waterer connects to a hose or pipe and uses a float to top up a basin as an animal drinks. For horses the main differences are basin size, material, how the unit mounts and whether it is plastic, steel or stainless. Many listings on Amazon.com cover several species, so the horse-specific details are worth reading closely.
The six waterers below range from a 4 gallon plastic unit to a long stainless trough and a heated bucket. Everything comes from each product page on Amazon.com. We have not used these waterers ourselves, so material and durability statements are the makers’ own, and we flag the places where listings contradict themselves.
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What to Look For
| Feature | Why it matters |
|---|---|
| Capacity | Basin sizes run from under a gallon to a long trough |
| Material | Plastic, coated steel and 304 stainless steel are all listed |
| Water connection | Check hose thread or pipe size against your supply |
| Mounting | Fence, wall, floor or bucket style |
| Heating | Only one unit here lists a heating element |
Specs at a Glance
| Waterer | Capacity and size | Material | Connection | Notes |
|---|---|---|---|---|
| Little Giant DuraMate | 4 gal; 17.5 x 14.25 x 10.75 in | Plastic | 3/4 in garden hose; 30 in hose | Fence or wall brackets; hardware not included |
| Little Giant 88ESW | About 11 x 11 x 6 in; 4.5 lb | Galvanized steel, epoxy coat (per bullet) | 1/2 in pipe, flex hose or garden hose | Installs at any height |
| Bokon 4 Set | 21.26 x 10.43 x 10.04 in; 15.2 lb | 304 stainless steel | Pipes about 31.5 in; 1/2 in and 3/4 in fittings | 2 bowls with outfall, 2 without |
| Abustle pig | About 2.5 L (0.66 gal) | 304 stainless steel | 39 in hose, 3/4 in end | Float valve; small size |
| homcare heated | 4 gal; 17 lb | Not stated | 3/4 in GHT to 1/2 in NPT adapter | 150W; drain plug; 1-year warranty |
| Paiaojia trough | About 39.3 x 7.8 x 11.8 in; 11 lb | Stainless steel | Float valve kit | 12 gal in title; 54 L in text |
The 6 Best Automatic Horse Waterers
1. Little Giant DuraMate 4 Gallon Waterer
A float-controlled plastic waterer, model FW16GREEN, that refills a 4 gallon tank on its own. It connects to a standard 3/4 inch garden hose, includes a 30 inch hose with a female attachment and comes with metal brackets for over-the-fence or on-the-wall mounting (hardware not included). The maker says it is made in the USA and sold in several colors. The overview lists a weight of 0.27 g, which cannot be right, so ignore that figure.
Suits: a hose-fed unit that hangs on a fence. Strengths: 4 gallons of capacity and a hose included. Weaknesses: mounting hardware not included and an unusable weight entry. Skip it if you want stainless steel.
View Little Giant DuraMate 4 Gallon Waterer on Amazon
2. Little Giant 88ESW Epoxy Coated Waterer
A small basin waterer, model 88ESW, that the maker says dispenses water by basin level. A bullet describes galvanized steel with a black epoxy coating, though the overview material field says cotton, which looks like an error. It connects to 1/2 inch pipe, flex hose or a garden hose, can be installed at any height, weighs 4.5 pounds and measures about 11 by 11 by 6 inches.
Suits: a pipe-fed install at a height of your choosing. Strengths: a light, compact basin with several hookups. Weaknesses: a contradictory material entry. Skip it if you want a large reservoir.
View Little Giant 88ESW Epoxy Coated Waterer on Amazon
3. Bokon 4 Set Stainless Steel Waterer
A four-bowl set in 304 stainless steel that weighs 15.2 pounds. The listing says two bowls have an outfall and two do not, with four stainless water pipes of about 31.5 inches, eight floats, 1/2 inch female and 3/4 inch male connectors and expansion screws. The color field reads only “[PI]”, so confirm the finish on the page.
Suits: several stalls or a shared run. Strengths: four bowls, pipes and floats in one box. Weaknesses: bowl capacity is not stated clearly. Skip it if you need one large trough.
View Bokon 4 Set Stainless Steel Waterer on Amazon
4. Abustle pig Stainless Steel Float Waterer
A single 304 stainless steel bowl with a float valve and a 39 inch hose with a 3/4 inch end. The listing gives a capacity of about 2.5 liters (0.66 gallon) and says it suits horses, goats, dogs, chickens and calves, which is a wide range for a bowl this small. The overview names the brand Abustle pig while the manufacturer field says Tbrand.
Suits: a compact stainless bowl. Strengths: 304 stainless and a hose included. Weaknesses: under a gallon of capacity and unclear brand details. Skip it if you want a bigger basin.
View Abustle pig Stainless Steel Float Waterer on Amazon
5. homcare 4 Gallon Heated Waterer Bucket
A 4 gallon bucket with a 150W heating element. The listing says its thermostat keeps water at roughly 63 to 73 degrees Fahrenheit (17 to 23 Celsius) in winter, and it adds float-controlled refill, a bottom drain plug, an anti-chew metal rim, a brass float with a spare plastic float and a 3/4 inch GHT to 1/2 inch NPT adapter. It weighs 17 pounds and the listed warranty is one year. Heating claims are the seller’s own.
Suits: cold-weather use with a garden hose feed. Strengths: a heating element, a drain plug and a spare float. Weaknesses: needs a power outlet and has no material listed. Skip it if you have no power at the water point.
View homcare 4 Gallon Heated Waterer Bucket on Amazon
6. Paiaojia 12 Gallon Stainless Trough
A long stainless steel trough with a float valve kit, listed at about 39.3 inches long, 7.8 inches wide and 11.8 inches high and 11 pounds. The title says 12 gallons while the text says 54 liters, which is closer to 14 gallons, so the capacity figure is inconsistent. The maker says the stainless steel suits outdoor and muddy areas.
Suits: a shared outdoor trough. Strengths: a long basin in stainless steel. Weaknesses: conflicting capacity numbers. Skip it if you need exact volume.
View Paiaojia 12 Gallon Stainless Trough on Amazon
Specs to Check Before Ordering
- Basin capacity, and whether the listing gives gallons or liters.
- Hose thread or pipe size against your water supply.
- Mounting style and whether hardware is included.
- Material details, especially where a listing contradicts itself.
- Power needs, if you choose the heated bucket.
For installation and care, follow the maker’s instructions.
Mistakes to Avoid
- Assuming a multi-species listing is sized for a horse.
- Ordering without checking that the connectors match your hose.
- Trusting a weight or material field that makes no sense.
- Forgetting that mounting hardware may be sold separately.
Automatic Horse Waterer FAQ
How does a float waterer work?
Makers describe a float that drops as the water level falls, opening a valve, and rises to close it again.
Do any of these need electricity?
Only the homcare heated bucket lists a heating element. The others rely on a water supply and a float.
The Short Version
For a fence-mounted hose unit, the Little Giant DuraMate. For a compact basin with pipe fittings, the Little Giant 88ESW. For several bowls, the Bokon. For a small stainless bowl, the Abustle pig. For a heated bucket, the homcare. For a long trough, the Paiaojia.
