To mention just one ! The new developed DC range of the RED DEVIL WATER and SKIMMER PUMPS. the secret is where the controller chips are now placed. Cool thing about about the DEVILS are you can convert from waterpump to skimmer pump and visa versa, we carry all conversions. Already extremely reliable are DEVIL pumps, now even more enhanced check us out : Reef Aquatics, Online Marine Aquarium Supplies, exotic marine fish and rare corals.