Flush Caps for Groco ARG Strainer 

Available in three sizes to fit any GROCO ARG Strainer, flush caps make flushing your raw water cooled equipment a snap. Temporarily replacing your existing strainer cap with a flush cap will allow you to easily connect a Port-O-Flush Jr.^® or garden hose to your system. Use flush caps to flush you raw water cooled equipment with Barnacle Buster^®, fresh water, or to aid in winterizing your system.
NOTE: Not intended to replace your existing strainer cap, for flushing use only.

Fits: Groco ARG 500, 750 & 755 strainers