M3/DSR/CZR Rebuild Kit

Marsoni

M251S

$24.95

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

M3/DSR/CZR Rebuild KitSet contains: 10x O Ring, # H 020 BN 70 Grn 10x O Ring, # H 019, BN 70 5x O Rings #H 017 BN 70 Org 5x O Ring H 016 BN 70 Brw 5x O Ring H 015 BN 70 Red 5x O Ring H 014 BN 70 Blu 5x O Ring, # H 013, BN 70 Ylw 5x O Ring H 013 UR 90 5x O Ring, # H 111, BN 70 brw 5x O Ring H 012 BN 70 Grn 5x O Ring H 011 BN 70 Org 5x O Ring #H 010 BN 70 Purple 5x O Ring H 009 BN 70 Red 5x O Ring H 008 ur90 oring yellow 5x O Ring H 007 UR 90 Grn 5x O Ring, H 005 BN 70 Ylw

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We offer a 30-day return/exchange service after receiving.
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These cooling pillows are very soft and provide excellent support for your head and neck. They are adjustable by taking our the stuffing if you need them to be more flat or less firm. The look great and comes in a pack of two which is a great value. During use, I did notice they have great shape retention and it does not take them long to return to their fluffy full shape. I am a hot sleeper and these do keep your head cool - just be aware using a pillow cover does reduce the cool ability but this allows you to adjust for weather like during winters to add a pillow case for extra warmth. Very happy with this purchase and got a second set to replace my old pillows.

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Reviewed in the United States on April 28, 2026

Verified Purchase

Akeem

Omaha, US

★★★★★ 5

Comfortable and stays cool

Color: White-cooling Basic, Size: Queen(Pack of 1)

Great pillow. When i opened it, i noticed a strange smell, i assumed its the smell of whatever they use to make the pillow stay cool. You have to fluff it for a good amount of time to make sure the cooling agent spreads well in the foam. Is what i assumed atleast. Its a perfect amount of softness for me. Pair it with some bamboo pillow cases and you got a good night of sleep

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Reviewed in the United States on May 9, 2026

Verified Purchase

Kim Groetsch

Lowell, US

★★★★★ 5

BEST, MOST COMFORTABLE PILLOWS EVER!

Color: White-cooling Basic, Size: Queen(Pack of 2)

I've used others.BEST PILLOWS EVER! Firm, cooling and supportive. LOVE THESE!

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Reviewed in the United States on May 28, 2026

Verified Purchase

Juanita

Lowell, US

★★★★★ 4

Comfortable and Supportive, but Adjust the Filling

Color: White-cooling Basic, Size: Queen(Pack of 2), Color: White-cooling Basic, Size: Queen(Pack of 2)

I’m very happy with this pillow. The size is big and it feels soft while still providing good support, perfect for midnight scrolling on TikTok. One thing to keep in mind is that it can feel a little too tall if you use all of the filling that comes with it. The good news is that you can easily adjust the amount of filling to find the height that works best for your sleeping position. Once I customized it, it was much more comfortable. Overall, great quality, comfortable, and worth the purchase.

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Reviewed in the United States on June 3, 2026