Minimizes nozzle dripping. Fits all TeeJet nozzles. Ball check opens at 5 psi (0.34 bar). Recommended for flow rates up to 0.8 GPM (3 l/min). 24, 50, 100 and 200 mesh screens. Not for use with AI or DG tips. Note: Use of these ball check valves results in a pressure drop of 5 psi ((0.34 bar) to 10 psi (0.7 bar) depending on spring rating.