Special: Certified by NSF to NSF/ANSI 61 & 372 Standards Connection Size: 3/4" NPT Flow: 0.05 to 14 GPM (0.19 to 50 LPM) Pressure: 4.3 to 85 PSI Ratio Range: 1:3000 to 1:333 Percentage Range: 0.03% to 0.3% Included Accessories: 6' clear suction hose, weighted strainer, mounting bracket and quick start guide.