Included in this set is a 24 in

METAL CONSTRUCTION: Quality zinc and aluminum materials ensure it will last season after season

Heavy-duty construction

BATTERY OPERATED: Runs on one CR2032 battery

24V 750mA Transformer for Indoor Sprinkler Controllers 57040 Shrub Included in this set isFor replacing 110 VAC to 24 VAC 750mA max transformers on indoor controllers Input and output are standard for pump relays and solenoids in North America Capable of powering two solenoids or one pump relay and one valve solenoid Pre installed plug for plug n play use with easy dial controllers For outdoor locations, install in an outdoor sprinkler controller cabinet Compatible with indoor controllers from Orbit, Hydro Rain, and other major brands