Dual Kranzle K1322TS Custom Install SolutionDescription I cant take credit for this idea, but it was an ingenious one from Mike F; getting 4 GPM (gallons per minute) at 900 PSI from this tandem Kranzle setup is absolute perfection. This Dual Kranzle K1322TS Custom Install Solution is a setup I didnt know I wanted until we discussed it in depth and it began to manifest. If you want ultimate flow, you can buy the big boy Kranzle KWS700 in one unit, but we wanted to see if a dual setup would work