Rainbird DV Series Electric Valve with Slip and X Slip Joint, 1"/24 VAC 1 in. (26/34) Slip-by-Slip (SS) configuration for low cost, solvent-weld installations Double-filtered pilot-flow design for maximum reliability Balanced-pressure diaphragm for long life External bleed to manually flush system of dirt and debris during installation and system start-up Internal bleed for spray-free manual operation