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MRCOOL Universal 2-3 Ton Air Return Plenum Box

Marsoni M251S
Sale price$29.00
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Get it in 3 business days with 1 day shipping. Friday, May 29
MRCOOL Universal 2-3 Ton Air Return Plenum BoxThis is a detailed set of plans to fabricate a sheet metal return plenum specific to the MRCOOL Universal 2 3 Ton indoor unit (air handler). The box accommodates a standard sized 20x20x4 filter. This plan is best handed off to a local sheet metal shop to build, unless you are experienced with fabrication and have the right specialty equipment (shear, brake, Pittsburgh seamer, spot welder). Whats Inside: Overview & general notes Parts List with Diagram
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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.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 1369 reviews
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Tiffany
Louisville, US
★★★★★ 5
Liked it so much I bought a second one
Color: Grey
Good quality….a little disappointed I thought the sections were stationary, however I’m able to move them to accommodate the chain size. Clear color and light weight. Fits in with my decor. I ended up buying g a second one I liked it so much!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 10, 2025
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Amazon Customer
Phoenix, US
★★★★★ 1
Dividers don’’t stay in place
Color: Beige
The dividers do not stay in place. It’s a great idea but not well executed because the dividers pop up or slide, leaving the necklaces to get tangled.
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Reviewed in the United States on December 8, 2025
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Verified Purchase
Teresa Darger
Dallas, US
★★★★★ 3
Slots inside drawers are not tight enough.
Color: Grey
I got an earring storage bin that matches this one and I do like this storage drawer set, but the little slots that separate the necklaces move around too easily and I don’t like that. It looks classy with the other stack I have.
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Reviewed in the United States on January 20, 2026
B
Verified Purchase
Brandon
Port Orchard, US
★★★★★ 5
Great Tray For Storing My Everyday Carries
Size: 8.5" x 5.8" x 1.9", Color: Black
My everyday carry items (wallet, keys, etc.), used to just get thrown around wherever when I'd get home, but this little tray makes a great, defined, space for me to keep those things when I don't need them on me. The soft lining reduces the obnoxious sound of throwing keys on a hard surface, and of course keeps me from scratching up a surface. The build feels quality and I haven't seen any damage to it yet. Also the all black version with gold buckle looks quite good and adds a subtle touch of luxury. Absolute recommend for the price.
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Reviewed in the United States on April 15, 2026
D
Verified Purchase
David Jordan
Grantham, US
★★★★★ 5
Just the right size to empty your pockets.
Size: 8.5" x 5.8" x 1.9", Color: Orange
Perfect size to empty my pockets when I get home. Fits my wallet, keys, AirPods, etc. excellent quality.
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Reviewed in the United States on March 21, 2026

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