Radium Engineering FCST-X Fill Neck Block-Off Kit

Radium Engineering FCST-X Fill Neck Block-Off Kit

Marsoni

M251S

$18.95

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

Radium Engineering FCST-X Fill Neck Block-Off KitSKU: 20 1060 FCST X Fill Neck Block Off Kit This kit blocks off the filler hole on the Radium FCST X units. Included: Anodized 1 8in (3mm) Aluminum Plate FKM O ring Gasket Seal Stainless Steel Hardware RADIUM Engineering, LLC Since 2010, Radium Engineering's goal has been to simply design and produce high quality aftermarket automotive performance products. Radium Engineering relies on a core team with a passion for innovation to lead the company

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Your Radium Engineering FCST-X Fill Neck Block-Off Kit orders ship within 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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I absolutely love these pillows From the very first night, I could feel the difference. They are incredibly comfortable, soft, and still provide great support for my neck and head. Plus, the modern design makes my bed look so much cleaner and more elegant. The fabric feels high quality, and the pillows keep their shape really well. I genuinely feel like I’m sleeping better since I started using them. Great value for the price, and I would definitely buy them again. Highly recommend

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Reviewed in the United States on May 27, 2026

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Jan Vyse

Battle Creek, US

★★★★★ 5

Great pillow

Size: Queen(Pack of 2)

Very comfortable pillows, medium softness with support

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Reviewed in the United States on May 18, 2026

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Lisa

Boise, US

★★★★★ 5

No more neck pain

Size: Queen(Pack of 2)

I needed new pillows and I’ll be the first to admit that I’m picky about my pillow. I had ordered different ones to try and these were the keepers. They are not too soft nor too firm. I wake up with neck pain and headaches if I don’t have a good pillow. I’m not experiencing any either one now. Make the purchase for yourself and try them.

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Reviewed in the United States on May 16, 2026

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Annette Bowles

Carnegie, US

★★★★★ 5

Fluffy and soft pillows

Size: Queen(Pack of 2)

Super soft and nice thick pillows. Quality was perfect.

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Reviewed in the United States on May 19, 2026

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