Exclusive to the V174K Kona swim spa are the Whitewater-4 Plus jets. Only in our top-tier Kona swim spa, the Whitewater-4 Plus jets utilize a special entrainment port to significantly boost the efficiency of each swim jet from 100 gpm (379 lpm) to 125 gpm (473 lpm) with a total of up to 750 gpm (3785 lpm) from the six swim jets. It’s a unique feature and another example of Marquis’ elegance and innovation.