The Hay OptiMizer

Combine the best of slow feed netting with the convenience of a multi-bale feeder.

About the OptiMizer

Always have hay available for your horses, naturally.


The OptiMizer holds two small square bales of hay, up to 42″ long and 16″ tall. It can hold up to 150 pounds of flakes of hay from large square or round bales.

The manger is made of LLDPE, the same polymer used to make playground equipment. All the corners are rounded or bevelled. Drainage holes on the bottom prevent wastage due to prolonged soaking. 

Slow feed netting is made from knotless nylon, proven to be durable yet gentle for feeding horses. The netting is made in North America and is a time-tested, durable hay net for horses. Standard  netting hole size is 1.5”, as measured at the open edges. The netting is mounted on an assembly made from stainless steel with a unique slide arm that quickly positions the net over the hay.



The manger is made of  durable and lightweight Linear Low Density Polyethylene (LLDPE), the same material that playground equipment and drinking water tanks are made from, with a stainless steel assembly mounted inside.

All corners are rounded with 1″ diameters, making a smooth and safe surface if rubbed against.


The slide arm provides for smooth, one handed operation to open and close the feeder.

Slow feed netting hangs freely inside the feeder and conforms with the hay right to the bottom of the feeder.


The tiniest bits are the tastiest. With an OptiMizer, these delicate leaves aren’t lost to the ground but remain within the manger.

Ensure drainage on any terrain with 13 holes distributed around the base of the OptiMizer.

Horses quickly learn how to eat hay from the OptiMizer. It mimics natural grazing. The horses eat slowly. They have their heads down in a natural position. They select, nibble, and chew their hay—just like they would be eating in the pasture. They’re so content when they’re eating together.

Sue Wilson


  • The standard colour is sandstone. Custom colours are available (4-6 weeks turnaround, premium dependent on colour
    choice and quantity ordered in custom colour).
  • 1.5″ knotless nylon durable slow feed netting comes standard. 
  • Stainless steel hay net assembly provides a rust-free environment.
  • 13 drainage holes help prevent hay spoilage due to prolonged soaking.



  • Length and Width: 4′ by 4′
  • Height: 34″ (can be adjusted from 22″ to 37″)
  • Weight: Approximately 100 pounds when empty
  • Net Size: Large enough to drape into the manger as all the hay is consumed. Net openings are 1.5″ as measured on the square. Replacement netting is available in both 2″ and 1.5″.


For your horses…

  • Hay is always available.
  • Eating is slow and relaxed.
  • Their heads are down in a natural position.
  • A safe herd environment is created.

And for you…

  • Easy and fast to refill (done in under a minute).
  • Hay consumption is regulated.
  • Hay isn’t soiled or wasted.
  • Peace of mindhay is always available.


Questions about the OptiMizer? Send us a message and we’ll be in touch soon!

8 + 3 =

My horse is a 17 year old, off-the-track thoroughbred who lives outside all year. She's a hard keeper, but by getting her the right amount of hay, whenever she wanted it, it was the first winter she didn't need an extra blanket or grain.

- Laura T.

We use 3 OptiMizers for our herd of 8 horses. We fill them about once a day, even on the worst days, and have found ourselves going through a lot less hay. I'm confident our OptiMizers will pay for themselves in the amount of money we've saved in otherwise ruined hay.

- Heather M.

I've always had slow feed bags. I needed five or six a day to feed three horses. Last winter with the OptiMizer I could slow feed two bales in one place. This saved me a ton of time not having to refill bags everyday, plus I noticed it was way cleaner in the spring.

- Amanda M.