The Zoo Med Turtleclean 10 and 20 each have the easy door open for changing filter cartridges, so you don't have to remove the whole filter every time. Just replace the filter as needed, to ensure that any dirt and debris is being efficiently cleaned out of your tank.
For prolonged life, periodically clean out the sponges gently, in a bucket of old tank water. Never put these sponges under the tap. Wash and replace as needed.
Available in Deluxe 10 and Deluxe 20 versions.