I'm one of the people that's had a great experience with these products. I've had a DC12000 as my return pump for over a year on my 225g. It runs great and silent. I clean it every 6 months. I also use two RW15's and two RW8's as circulation pumps. Work great and I clean them about every 4 months. I've got a DC3000 running my reactors. I will continue using these products.
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