Jan 26, 2018 - 02:00 PM
The difference between the QEFA-1630 and teh QEFA6-1630 is the amount of legs that are with it. The QEFA-1630 has 4 legs and the QEFA6-1630 has 6 legs. The QEFA6-1630 only has 4 pumps. The pump left center and left rear pump work together and the right center and right rear pump work together.