For sale is a Dosmatic The Advantage A12-1% NPT Part No 112401 SN 531410018 Flow Rate: 0.03 gpm - 12 gpm or 0,11 lpm - 45 lpm Injection Rate: 0.200% - 1.00% or 1:500 - 1:100 Operating pressure: 6.0 100 psi or 0,41 6,9 bar Inlet/Outlet: " npt , " bsp Part#'s NPT: 112401 BSP: 112411