RainBird Xeri-Caps are a shut-off cap for Rain Bird 1800 Series spray bodies. 

Use this threaded cap to quickly and easily cap off pop-up spray heads when converting to drip irrigation. No digging required to cap a Rain Bird 1800 series sprinkler; simply twist off existing cap, remove the internal mechanism and screw on the new cap. Gasketed cap provides a leak-tight seal of any unused heads on the zone. 

Easily cap off any unused spray heads when converting a sprinkler system over to a drip system or for areas you no longer want to water.

Operating range (pressure): up to 70 psi