I bought these filters for my Shark Rocket Deluxe Pro. The filter that comes with the vacuum when you buy it is washable, but after washing the filter every month (and sometimes more) for a year, I figured it was time to just replace it. These filters don't come with instructions, but it's not hard to figure out which side goes down and in what order to put them in the slot. The hole in the filter is actually too small for my vacuum cleaner model, but with a little tug and patience it fits perfectly. Haven't tried washing them yet so can't confirm how well they hold up to washing, but so far I'm happy with my purchase. I will update this review once I wash it.