For larger systems or for fogging and misting line applications we are happy to again offer our open air misting pumps designed to produce 1/2 GPM, 1.0 GPM, or 2.0 GPM. Rugged and reliable, these pumps are sized to allow numerous options in multiple outlet fogging and perimeter misting applications. We always recommend that pumps run at 900-1000 PSI so we suggest using the 70 Bar column.