Got here fast and is the perfect size for what I needed.
Works excellent, has made water filtering even better
I have a Topfin 10 gallon setup with a HOB from PetSmart. This fits the intake perfectly once I took off the intake guard. It helps keep the main filter cleaner longer which is large sponge coarse pad that I bought at the same time. It also holds any excess food that the fish can then still eat and it also prevents any fry from getting sucked up. Fast shipping and definitely worth the money. I'm sure I'm just one of many after watching Cory's video on YouTube about got hot rodding your filters.