The HQRP Filter Canister Cleaner Coaster is a must-have accessory for anyone who OWNS a vacuum cleaner. My analysis of this product showed that it is incredibly efficient at cleaning filter canisters and extending the lifespan of your vacuum. The coaster is easy to use and fits most vacuum models. The only downside is that it may not work as effectively on larger canisters. Overall, I highly recommend this product for anyone looking to keep their vacuum in top condition..