Do you think you could pop out the impeller on the c360 and compare it to the 303b? If they are the same then sun sun pimps will have a source on replacement parts
Well, I'm right in the middle of cycling my tank. What my plan was when I am going to do my filter maintenance, pull the C360 apart and compare all parts with the Sunsun. Will the power heads fit each other? Baskets fit? Stuff like that. I can do the impellers and takes some pics and post them. Got to wait 4 weeks though.
Make sure you guys remind me!