The flush head spray sprinkler wrench is engineered specifically for installing and maintaining pop-up and non-pop-up flush head sprinklers. It is constructed of durable die-cast metal. One end has two prongs that fit in the grooves of flush heads to assist in threading them on and off sprinkler risers. The hex end allows you to replace brass and plastic flush head spray nozzles. Compatible with all Orbit brass and plastic flush head spray sprinklers. For outdoor irrigation use with cold water only.