Massive Passive Retube Kit Version A

Marsoni

M251S

$175.00

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

Massive Passive Retube Kit Version AThis kit is only for Manley MASSIVE PASSIVE's with the serial number falling in between MSMP000 MSMP999. Includes (2x) 5751 tubes for input, (4x) 12BH7 or 6414 tubes for driver output. Be aware that some tube brands are subject to change over time and may not match the pictures shown.

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Standard: 3-7 business days
Fast: 2-3 business days
Express: 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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These are terribly greasy, causing blurry vision. The first ingredient is mineral oil! Prior to ordering I searched the listing for the ingredients list and found nothing. I went to the product's website and still found nothing. I read reviews, which were mixed. I ordered them anyway, foolishly, and threw them in the trash.

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Reviewed in the United States on May 25, 2026