Small parts can often be the most important ones. For example: one missing screw could mean a whole deck falling apart (maybe - we’re not carpenters but a missing screw probably isn’t good). Another example: a filter in a pipe. Without it, you’ll have a clogged pipe, a mouth full of ash, and a cranky attitude. Avoid both of those things with a screen made from stainless steel, just like this one. And because one is never enough, this is a pack of five screens. High five (literally).