Zoo med 501
Used for 3 weeks and upgraded to a eheim 2211. This filter was not as quiet as my other eheim 2211 ( now I own two eheim 2211's). Still a good filter for $20. Tubing has been cut and spray bar has been cut. Carbon bag is missing. Other than that I have every single part. Runs well. $20 Portland/vancouver area.
I also have an eheim quick disconnect 9mm for $15.