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PORTA-GRAZER by Grazing Feeders, Inc — Barn Accessories (PORTA-GRAZER ™ Second Only)

PORTA-GRAZER by Grazing Feeders, Inc

PORTA-GRAZER by Grazing Feeders, Inc. PORTA-GRAZER ™ Second Only

Looking for pastures slow horse feeders that hold up to barn life?

Reviewed by Ann Pruitt, InfoHorse.com · Updated July 2026
XL PORTA-GRAZER two-piece slow hay feeder set with barrel and grazing pan
XL PORTA-GRAZER two-piece slow hay feeder set with barrel and grazing pan
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PORTA-GRAZER by Grazing Feeders, Inc.
PORTA-GRAZERSecond Only To Nature- Approved by Equine Veterinarians and Dentists!
Provides head down grazing- when pasture is not an option!


2nd Only to Grazing!
See for yourself why PORTA-GRAZER™ is used all over the world by well-known clinicians, trainers, veterinarians, and everyday horse people. PORTA-GRAZER™ provides grazing when pasture is not an option! It is a system that simulates natural grazing by allowing your horse to eat hay or pellets at a naturally slower pace. It replaces the usual feast and famine system of being fed twice a day and eating too quickly. This durable feeder aids your horse’s digestion by allowing your horse to eat the way nature intended, slowly throughout the day. Celebrating over 14 years of business-- World Wide!
Is It True That Disney World and Disney Land Use Porta-Grazer™ For Their Horses?
Yes! The Happiest Place on Earth- Disney World and Disneyland use Porta-Grazers™ for their horses. In addition, many mounted police departments use Porta-Grazers for their police horses. Clinicians, trainers, race tracks, and every day horse people have found that Porta-Grazer is an asset to their horses lives as well as convenient and a money saver.
Portable and easy to take with you so your horse stays on the same feed routine no matter where they are.


How Does The PORTA-GRAZER Work?

Hay is placed in the feeder. Then the feed pan is placed on top of the hay. This pan has a special arrangement of holes sized according to the horse’s size and type of feed to be consumed. The feed is pulled through the holes and torn off as it is being consumed, simulating natural grazing. As the feed is being pulled through the holes, sand and dirt are removed collecting out of reach in the bottom of the feeder to be discarded later. Each bite is eaten as it is pulled through the holes not allowing the feed to be picked through or dropped to the floor where parasites and sand may be ingested.

The patented rotating pan lifts and holds the bits of hay up to the horse. So, they can size and tear their bite same as if in pasture. The horse is not forced to eat down thru little holes. The pan rests on top of the hay and goes down as the hay is consumed. The tab locking system keeps the hay in the feeder even when rolled around. No hardware to endanger your horse. To take the pan in or out you simply line up the key hole with the arrow on the handle. The feeder can also be secured by one handle if you don’t want your horse playing with it.



So, How Does Porta-Grazer™ Help?

By putting low calorie forage in the Porta-Grazer™ your horse is able to graze in a more natural head down position that allows the jaw to slide into position for proper chewing. The rotating pan lifts the hay up thru the holes and holds it so the horse is able to size and tear each bite same as if in pasture while providing more chewing time which produces more saliva that buffers the stomach acid. Once the horse is self-regulated it will eat what it needs to buffer the acid and walk away, to come back again later when it needs to buffer the acid again. Horses naturally graze 18-20 hours a day...
Using a Porta-Grazer also prevents wasted hay, and keeps the hay off the ground and out of the mud, sand, dirt, snow etc.

Porta-Grazer™ Both Discourages & Helps Many Digestive Ailments 

Thus providing a way for horses to graze when pasture is not an option. Can be used anywhere-inside,outside, at home or on the go. Horses that eat regularly with their Porta-Grazer™ are often much healthier! Porta-Grazer™ was designed to help horses eat better, with small meals continuously, to keep a healthier gut, head position and improved digestion.
  • Sand Colic
  • Impaction Colic
  • Ulcers
  • Laminitis
  • Founder

  • Parasites
  • Weight Control
  • Insulin Resistance
  • Copd

  • TMJ
  • Choke
  • Bad Stall Habits, 
such as chewing wood,
kicking walls, cribbing, weaving

  • Helps with Back, Hock, Neck issues
  • Allows Dunking/Soaking
...and more!



How Porta-Grazer™ Can Discouraget and Even Help Heal Ulcers

Don’t let ulcers keep your horse from performing their best-- just do what it takes to help heal them! Horses need access to forage 24/7 to keep their stomach acid buffered to prevent ulcers.

So How Do We Feed Our Horses 24/7 Without The Horse Becoming Fat?

Easy! Use a low calorie grass hay, such as Timothy, Teff or Bermuda. It’s the calories IN the hay that needs regulated not the volume of hay. In order to give your horse, the ability to keep that acid in check it needs a continuous supply of low calorie forage at all times.

►Another option is using straw. Oat, wheat or barley straw. You can mix the straw in with your hay in the Porta-Grazer to add more volume without adding much in the way of calories.

Porta-Grazer™ Helps Discourage Sand Colic
How using a Porta-Grazer™ can prevent sand colic: Hay is pulled through the holes and torn off. The dust, sand and dirt are shaken loose and work its way to the bottom of the barrel. There it is collected in a trough out of the horses reach to be discarded later. Little to no feed is dropped to the ground to be contaminated with foreign materials and ingested.
When feeding on the ground sand and dirt particles can be ingested.
Horses do not eat naturally off of the ground, they eat the tops of plants that grow from the ground.



Porta-Grazer™ Eliminates Hay Waste! The $
avings Are Notable!
The unique patented design
eliminates hay waste by not allowing hay to be picked through
or spread to the ground and wasted. The tab locking system keeps the pan in the barrel even when rolled around. The hay stays in the feeder instead of being spread all over the ground. The pan also prevents the horse from searching thru the hay to get the sugar first. Only being able to eat what pops up thru the holes. The pan is designed to lift and hold the bits of hay up to the horse so they can size and tear off each bite same as if in pasture.

What If I Need To Soak My Hay?
Soaking has never been easier and you stay dry! Load dry hay as per directions, place pan in, fill with water. When done soaking simply remove the drain plug to drain the water out. Then give to the horse.
Note: Plug should always be removed when the feeder is in use.

What About When I Am On The Road?

PORTA-GRAZER™ Traveler reduces travel stress for you and your horse by not interrupting your horses feeding regiment while away from home. Just grab it from the stall, fill it with feed, pop on the lid and go. When the lid is removed it then becomes a water trough to hold several gallons of clean water!

What Do Customers Say About The PORTA-GRAZER™?

We’ve only had our grazers about 2 weeks. Our vet suggested them because our horses were getting colic and sand impaction. Our horses are calmer and happier, it seems like it happened overnight. No fighting, no colic, no waste, no sand. These are the best!Karen Plomondon Small

This has saved my horse from browsing on sand. He would wolf down his feeding and be so bored, now he’s occupied, happy and healthier.
Marilyn Waidelich

The PORTA-Grazers work great! They took to them right away spending most of their time eating, not wasting hay and messing their stalls. My stall cleaning time has gone from about 45 minutes to just a few minutes a day. Great product. Thanks.
Deb Renger, Five time Canadian Champion Barrel Racer

Couldn’t be more pleased with our three feeders. We have a senior horse, who needed the bigger holes, with our other two quarter horses using the regular feeder. This is the Best investment we ever made. You save so much money…there is no more wasted hay that has blown away or been messed on. We test our boys fecal every six months and there has not been sand in it for over a year. Our youngest gets bored really easy, so he loves to play with his. These things Hold up!!! So, I wouldn’t call them “Expensive”, but rather a “Money Saver”. You save money on feed, Sand Clear, and vet bills. Sounds like a win-win to me! Thank you, for delivering an Awesome and Quality product!!! Feeling blessed!!
Lynette Owning

Order Your PORTA-GRAZER™ Today!

The Healthy benefits when using a Porta-Grazer™ helps save you money. No more wasted hay, healthy content horses, less time spent cleaning stalls, allows the horse to eat in a more natural head down position while keeping the back, neck and hock aligned. The Porta-Grazer™ is a solution that you and your horse will love! The savings on hay that was previously scattered and soiled, the slow feeding advantages that help keep your horse's digestive system, make it all worth while. Be Sure to Order Today!





XL PORTA-GRAZER two-piece slow hay feeder set with barrel and grazing pan
XL PORTA-GRAZER two-piece slow hay feeder set with barrel and grazing pan

What exactly is the PORTA-GRAZER™ slow feeder?
The PORTA-GRAZER™ is a patented two-piece hay feeder (Pat. 10,149,455 B2) built around a barrel and a removable grazing pan with pre-drilled feeding holes. Hay is loaded loosely into the barrel, then the perforated pan sits on top; as the horse pushes and spins the pan, gravity lets it settle so the animal pulls and tears each bite to size through the holes. The result is a head-down grazing posture and a naturally extended feeding time the company sums up as "Second Only To Nature." It takes just seconds to load and requires no assembly.

XL PORTA-GRAZER slow hay feeder front view
XL PORTA-GRAZER slow hay feeder front view

Who makes the PORTA-GRAZER and where is it built?

The feeder is manufactured by Grazing Feeders, Inc. and is proudly made in the USA. The company sells direct from porta-grazer.com and can be reached at (208) 315-0373 or, with order hours Monday through Friday, 8:00 AM to 3:30 PM MST. International buyers are served through authorized dealers in Australia (portagrazer.com.au) and Switzerland, and the feeders are also stocked by retailers such as Getty Equine Nutrition.

Horse grazing head-down from a PORTA-GRAZER slow hay feeder
Horse grazing head-down from a PORTA-GRAZER slow hay feeder

What materials and construction go into each feeder?

PORTA-GRAZER barrels and pans are molded from rugged food-grade (not recycled) polyethylene plastic that is UV protected and rated to 30 degrees below zero. The grazing pan is engineered to be softer than a normal healthy horse's teeth, so horses can nuzzle and spin it without dental damage. Every model includes a 3/4-inch threaded drain plug, which makes soaking or rinsing hay straightforward, and many owners report units lasting well over ten years.

PORTA-GRAZER XXL Corner Grazer two-piece feeder set
PORTA-GRAZER XXL Corner Grazer two-piece feeder set

Which models and pan-hole options does the line include?

The range covers the Mini PORTA-GRAZER (roughly $299.00, about 2 flakes, 22 x 22 x 19 in), the XL PORTA-GRAZER (roughly $319.00, a barrel plus one pan holding about 3 flakes at 22 x 22 x 25 in), and the free-standing XXL Corner Grazer (roughly $379.00, about 6 flakes for a 24-hour fill). Each set ships with your choice of pan: 10-hole for pellets or soft grass hay, 8-hole for fine grass hay, and 6-hole for alfalfa, timothy, teff, coarse or compacted hay, soaked hay, draft horses, and horses with bite issues. Traveler sets pairing a feeder with a 9-gallon water trough and a DIY "Build Your Own" option round out the catalog.

What equine problems is it designed to help with?

By restoring slow, head-down, trickle feeding, the PORTA-GRAZER is positioned to help with colic (including sand and impaction colic), ulcers, laminitis, choke, Copd and respiratory issues, TMJ, cribbing, weight control, insulin resistance and Cushing's complications. It also curbs hay dunking and other bad stall habits and dramatically reduces hay waste compared to nets and ground feeding. The company notes it is "Approved by Equine Veterinarians and Dentists," and Texas Tech University's School of Veterinary Medicine selected XXL Corner models for its Amarillo, Texas facility.

How do you order and care for one?

Feeders are sold directly through the online shop at porta-grazer.com and ship via FedEx Ground in individual boxes (the units cannot stack). To choose a model, match capacity to your feeding routine and pan-hole count to your hay type, then add a Traveler set if you haul or compete. Cleaning is simple: pull the pan, rinse the barrel, and use the threaded drain plug to empty soak water, leaving a durable feeder that supports the horse's natural grazing pattern day after day.

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The Solution Section (FAQ)
What is the PORTA-GRAZER™ and how does it work?

The Orange Slow Feeder is made from Factory New Marine Grade netting — the same high-quality material used in the fishing industry. Nothing is used or reclaimed; it is all new material. The twine is thick, finely braided Polyethylene, which lasts considerably longer than the lighter-weight non-braided twine many competitors use.

How does the PORTA-GRAZER™ let a horse graze in a natural position?

Marine Grade netting is abrasion resistant, UV inhibited, and built to be over-stuffed, which gives it a much longer life than typical feed-net materials. The Orange Slow Feeder uses netting with a 1200 lb breaking point. Brian Leary and his clients have used the same nets with their horses for nearly 4 years.

Can the PORTA-GRAZER™ help with sand colic?

Slow feeders reduce hay waste and support a more natural, healthy way to feed, which can lower costs tied to hay, colic, and ulcer prevention. The bigger savings come from durability: if you replace cheaper nets every 30 to 90 days, those costs add up fast. Orange Slow Feeder nets are built to last years, reducing your long-term replacement cost.

What digestive and behavioral issues is the PORTA-GRAZER™ meant to help with?

The current square size is 1-3/4 inch. Additional sizes are planned, with 1-3/8", 1-1/2", and 2" squares listed as up-and-coming options.

How do I feed my horse forage all day without it getting fat?

The lineup includes the Small Trailer Feeder at $42.50, the Large Trailer Feeder at $57.50, the Pumpkin Net at $72.50, and the West Coast Net at $92.50. Larger options include the Round Bale Net at $215 to $345 depending on size, the Small Square Bale Net at $330, and the Large Square Bale Net at $390.

Does the PORTA-GRAZER™ reduce hay waste?

Yes. The nets are designed to be compact for easy storage and transport, while still offering a wide opening that makes filling simple — they can even be over-stuffed. That suits busy horse owners who often work jobs off the farm or ranch.

Can I soak hay in the PORTA-GRAZER™, and is there a travel version?

That is exactly the problem it was built to solve. Founder Brian Leary started the company after his own horses destroyed every net he tried, and customers report the nets are virtually indestructible. One client kept the same net in front of a known net-eater for 18 months.

How do I order a PORTA-GRAZER™ or get help choosing the right one?

You can call or click to order. Reach Brian Leary by phone at 253-363-7801, or visit the Orange Slow Feeder online at https://www.orangeslowfeeders.com to choose the net that fits your hay and your horses.

Who makes the PORTA-GRAZER and is it made in the USA?

The standard mesh is a 1-3/4" square opening. Select nets like the Pumpkin Net also offer 1-1/4" and 2-1/2" square mesh, and the company can produce custom mesh sizes on request to match your slow-feed goals.

What models of PORTA-GRAZER are available?

Orange Slow Feeder is a woman- and veteran-owned small business in the Pacific Northwest, founded in 2014 by Brian Leary. The netting and ropes are manufactured in Washington State, and the rings are manufactured for the company in Rhode Island, making it an all-USA build.

How much does a PORTA-GRAZER cost?

It started with horses. Owner Brian Leary was looking for a way to help his own horses, and as the company says, "The Original Orange Slow Feeders were built for our use with our horses." That personal need in 2014 turned into a product line of heavy-duty slow-feed nets.

How much hay does each model hold?

On orangeslowfeeder.com, the Pumpkin Net is $75.00, Round Bale Nets start at $215.00, Square Bale Nets start at $82.50, and stall/trailer nets start around $42.50. Bulk netting and accessories begin near $17.00.

What are the dimensions of the feeders?

The company states the nets "Reduce Waste by 98%." Because the horse must nibble hay through the mesh instead of pulling it onto the ground, far less hay is trampled, soiled, or blown away, which is where most feed money is normally lost.

What material is the PORTA-GRAZER made of?

With everyday use, the nets are rated for roughly 1 to 6 years. Stationary nets that aren't moved around tend to last 1 to 3 years; rotating a stationary net to a fresh section of mesh about once a month helps extend its life.

What pan-hole options are available and which should I choose?

Rarely. According to the company, "maybe a handful of horses chew through these nets," and that's typically only extremely aggressive chewers. The heavy 4mm marine-grade twine is built specifically to withstand the abuse of a determined or playful horse.

Can I soak hay in the PORTA-GRAZER?

The netting has a 1,200-lb breaking strength, so as the company puts it, "The netting is NOT going to break. The shoes will get ripped off." Proper hanging is essential for shod horses, and for ground feeding with round bales, shod animals need the net protected or elevated.

What health problems can a slow feeder like this help with?

Yes — they are ideal soaking nets. The netting does not hold water because, in the company's words, "The netting material is designed to drag along the bottom of the ocean," so it sheds moisture and drains rather than staying waterlogged.

Is the PORTA-GRAZER veterinarian approved?

The polyethylene material "does NOT hold moisture so it will NOT freeze" on its own, and stays pliable in cold weather even if it stiffens slightly. The one caution: if animals pack a ground net into wet ground, mud can freeze the net into the soil, so keep it off saturated dirt.

Will it really reduce hay waste?

Pressure wash it, or soak or spray it with a vinegar-and-water solution. Cleaning out the dirt and grime that collects between the fibers also keeps the net from getting stiff, which is the usual cause of stiffness rather than the material itself.

Is the PORTA-GRAZER hard to load or assemble?

For a single horse, the Pumpkin Net is the most versatile choice — it hangs in a stall, on a high line, or on the side of a trailer. For pasture or herd feeding, choose a Round Bale Net (4'x4' up to 6'x6') or a square-bale net like the West Coast or Colorado Bale Net to match your bale size.

How durable is the PORTA-GRAZER?

The Pumpkin Net's open end is "large enough for one person to easily fill the net with 3 flakes of a 3-tie hay bale or 1/2 of a full compressed bale." Its top rope is strong enough to hang from a beam or eye-bolt for stall, high-line, or trailer-side feeding.

How do I introduce my horse to the PORTA-GRAZER?

Yes. The company says, "Absolutely! Our usual mesh size 1-3/4" is a good size but you can always ask us for a larger size if needed." Custom larger mesh is available for livestock that need bigger openings.

How is the PORTA-GRAZER shipped and how do I order one?

Slowing intake keeps the horse chewing and producing saliva over a longer period, which buffers the stomach, and it spreads feeding across more of the day. As the company notes, "Horses are designed to graze 18 hours a day," so a slow feeder more closely matches a horse's natural grazing pattern than meal-style feeding.

Is there a travel option for hauling or shows?

Wet, moldy, and trampled hay is wasted money, and that loss adds up quickly over a feeding season. The Hay Bonnet keeps hay dry, cool, and clean so far more of every bale gets eaten, which is why the company says it pays for itself in the first year and longtime owners credit it as one of the best investments on their farm.

Contact PORTA-GRAZER by Grazing Feeders, Inc

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Ann Pruitt
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