$5.10
Model No: POP410CK
4″ Pop-up Riser Replacement Stem with LittleValve for Rain Bird model 1804 pop-up sprinkler – with Check Valve to stop low-head drainage.
Note:
4″ pop-up sprinkler means the pop-up riser stem rises up to about 4″ above the sprinkler cap, which is generally located at or slightly above the surrounding soil.