MRC Auto Reverse Loop Module

Marsoni

M251S

$35.95

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

MRC Auto Reverse Loop ModuleAutomatically change polarity of your reverse loop or reversing section. Easy 4 wire hookup. Up to 5 amp output. Not for use on non DCC layouts or with nondecoder equipped locomotives.

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

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We offer a 30-day return/exchange service after receiving.
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These have been my go-to socks for almost 8 years now. I love that they are cotton, so they absorb sweat rather than give you that slimy feel you can get from polyester. They have great support in the mid foot and fit great due to the sizing. Just the right amount of padding and exhibiting an attractive low cut below the ankles. I highly recommend these socks. I hope this is helpful.

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Reviewed in the United States on October 18, 2022

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Amazon Customer

Cuba, US

★★★★★ 5

They are socks

Size: Large, Color: White (6-pairs)

It’s UA and they’re socks. They go on your feet and stay there.

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Reviewed in the United States on June 28, 2025

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Jenn C

Draper, US

★★★★★ 5

So comfortable

Size: Large, Color: White (6-pairs)

They are so comfortable on my feet. Not thin but not so thick your feet are hot. Very comfy and well made. Socks that will last.

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Reviewed in the United States on May 21, 2024

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Mike Reading

Carnegie, US

★★★★★ 5

Fit like a glove… on your feet!

Size: Large, Color: White (6-pairs)

There socks! What else can I say?! Good fit! Good feel! Good quality! A little more on the thicker than thinner side, so if you want a really thin white ankle maybe go another direction.

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Reviewed in the United States on June 1, 2024

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Randy Deasy

West Palm Beach, US

★★★★★ 5

Not to thick or thin well made

Size: Medium, Color: (601) Bittersweet Pink / Stone / Stone

I bought pink so as not to lose when doing laundry with my daughter who steels all socks lol!

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Reviewed in the United States on May 8, 2026