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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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

I’ve only had this about a week but I like it so far. It has a hook that grabs the vent blade and is very sturdy. It also has a part that slides up and down. I realized after a few days that can be tightened as well. Makes the phone even more still. There is a small button on the right that releases the arms that grab the phone. I didn’t see that noted on the instructions so mentioning it here so no one pulls on them like I did a few times. As long as this doesn’t damage my vent, I will be pleased.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on April 21, 2026

Verified Purchase

Rhonda H.

Whiting, US

★★★★★ 5

Stays put butc.

Never falls out. The ventures is amazing. Bm

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on May 13, 2026