jervis, thanks for the extra information. If i am not wrong, Deltec1004 sld be using eheim1260 pump which is 65 watt, thus 65 watt x4 is 260 watt which is still a lot. I mean the reason why people want to switch from beckett to needlewheel in the first place is bcuz of the high energy consumption! Buying a 260 watt needlewheel wld defeat the purpose.
Bubbleking is ranked first in the reefing community for their low power consumption, yet able to achieve impressive results. Seriously, BK is a great choice except for the short of spare parts. At least Reefdepot do provide spare parts for Deltec.