Rain Bird - ESP9V4 - (4-Zone) Battery-Operated Controller Accessories_Surge Protection sprinkler zones

sprinkler zones

RPM Cast Iron: 100

How many zones does this part provide

Side and combination 1/2" (15/21) or 3/4" (20/27) bottom inlet for design flexibility

What does the pressure-balance function do

Rain Bird - ESP9V4 - (4-Zone) Battery-Operated Controller Accessories_Surge Protection sprinkler zonesSpec Sheet Install Manual Tougher, Easier and Longer Lasting Get reliable automatic irrigation control when you don't have AC power with the ESP 9V Series Battery Operated Controller. The ESP 9V's waterproof case and dual sealed battery chamber ensure long life even when installed in a wet, muddy valve box. In harsh environment testing the ESP 9V outlasted the competition by 70%. After being submerged in water at alternating extreme hot and cold