I have two of these holders; one is for my mb quart 4 channel and the other is for my mb quart 1600.1. I have had them installed for about 2-3 weeks and have had no problems. I was a bit skeptical about the quality because of the price, but i have been reassured after actually installing and running them. Local shops wanted about $20 a piece for fuse holders, sonicelectronix pulled through again!
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