I have two DCP-4000 pumps, for sale, that were lightly used for 2 months. Very quiet. Upgrading to a stronger pump, is all. I'd keep them for another tank build, but I already have 2 more. No need for 4 of them, lol [emoji23]. $55 ea or $100 for both. Pick up only, please. Located in Battle Ground Thanks for looking... Sent from Atlantis 🤙