https://www.fastenal.com/product/electrical/circuit-protection-and-distribution/fuses-and-accessories/ceramic-fuses/604318?categoryId=604318&level=4&isExpanded=true&page=1&pageSize=12&exactSkuMatchLevel=useData&view=0All good quality industry standard fuses that won’t cost you more than a buck or two. Not like the >$150 the boutique SR snake oil fuses do for the same thing.
Yes there a couple of $5-$14 special "cartridge" size instrument fuses, which are not your normal sizes of hifi fuses.