Seltz D is the newly revealed official name for the Varia Flow pump that Hydor has slowly been pulling back the curtain on since last fall at MACNA. The first thing we learned about the Seltz D is that it…
Fresh Look at the AC Controllable Varia Flo Pump From Hydor
Hydor may not have been first to the controllable return pump party but their Varia Flo does have some promising features. First of all, unlike virtually all other controllable DC pumps, the Varia Flo is actually a controllable AC pump. What this…
