I contacted them because I heard they were coming out with a WP-25, they said it would be coming out soon. On another note you can purchase a universal varible voltage power supply from them or I saw some posts where people were getting them on Amazon. I just ordered one from them for $10 and it shipped with the powerhead. I have it set up in the basement on my 20 gallon Quarantine tank and have been going through the different modes. The variable voltage settings is making a difference in flow, so dialing in a setting should not be to hard for a smaller tank. I gotta say that for the price so far I'm very impressed. I know that it is not an MP40 but for the price difference I couldn't pass it up. I will try to post a vid of it in the DT. I plan on putting it in sometime over the next couple of days.