M/A 21 Space Standalone Rack Rear Door

Marsoni

M251S

$517.50

Get it in 3 business days with 1 day shipping. Friday, May 29

M/A 21 Space Standalone Rack Rear DoorMIDERK2120 Middle Atlantic 19" ERK Series 21 Space Rack Enclosure Middle Atlantic makes REALLY high quality racks! And their ERK series 19" stand alone enclosures have unsurpassed features combined with our aggressive prices! Features include : Fully welded constuction, solid sides. UL Listed in the US and Canada. 2500 lb. Weight capacity. 16 gauge steel top,bottom and sides. Laser cut 1 8" thick internal steel braces for strength. Large cable entry

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Your M/A 21 Space Standalone Rack Rear Door orders ship within 1-2 business days.

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Fast: 2-3 business days
Express: 1-2 business days

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
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My dog has a real talent: turning every “tough chew” into a sharp, weaponized shard that could star in an episode of Locked Up: Canine Edition. But THIS chew? Absolute game changer. For the first time ever, I can relax—no splinters, no pointy edges, no fear he’s secretly crafting a shiv under the couch. Just happy, safe chewing that actually lasts longer than five minutes. It’s durable, it’s safe, it keeps him busy, and I no longer feel like I’m living with a furry little inmate planning an escape. Highly recommend if your dog chews like he’s got nothing but time.

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Reviewed in the United States on January 29, 2026

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Axmceach

Draper, US

★★★★★ 4

Would buy again

Size: Small

Would have given 5 stars, but my dog was able to chew this down pretty quickly, so not the most durable. I do like that this is made with better material than other dog chews, so I would buy again.

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Reviewed in the United States on February 12, 2026

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Amazon Customer

San Leandro, US

★★★★★ 5

Aggressive Chewers

Flavor Name: Bacon-bone shape, Size: Small-under 20LBS

Great for aggressive chewers.

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Reviewed in the United States on February 27, 2026

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Julie

Grantham, US

★★★★★ 3

Really not for aggressive chewers

Flavor Name: Bacon-2Pcs, Size: Medium/Large-under 60LBS

My 4 year old doodle is a very aggressive chewer. I am always looking for chew toys that will last longer than a day these did not!

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Reviewed in the United States on March 13, 2026

Verified Purchase

Melissa

Los Angeles, US

★★★★★ 5

Great dog bones

Flavor Name: Variety Flavored, Size: Small-under 20LBS

My dogs really like these bones. They are a very durable material and easy for the dogs to hold onto while they chew. They are resistant to the chewing and don’t fall apart. They keep my dogs entertained and happy.

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Reviewed in the United States on May 4, 2026