And yes, most people will want the newer units. If I had none, I'd go with the RW. But if one of my exisiting ones dies, I want to replace it with the same thing. I'm sure there are a lot of people out there in the same position. I think Jebao sold a few units
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Yes , I agree as I have a pair of wp25's and if one died I would prefer to replace the one pump as well.