Littelfuse got to orange first!
Really "priceless", that’s bit of a lame fist pump.
Yes it’s a $10 more robust low magnetic fuse which means the end caps are brass and not steel, and a thicker glass envelop that’s all, nothing what so ever to do with improving sound as the shillers here preach and have you believe.
But definitely look like the they "maybe" the re-badged $160!!!! SR fuses though. Great insane markup if you can get away with it.
You can get similar in Bussman non magnetic end caps and who knows what colour the ceramic powder is.