Patented ball-valve design in a spiral-barb swing pipe elbow with automatic drain built in. Turbulent flushing action, dirt-stopper screen and patented recessed wicking pad. Simply install beneath sprinkler heads - save time and fittings.
For all drains, a gravel sump beneath drain is necessary
only in heavy clay conditions.
Click Here for more info on How to Use these drains
to Winterize your Sprinkler System