Description
Clack WS1 Blue Injector Assembly for 12" DownFlow or 14" UpFlow Tank Diameter
Clack WS1 and 1.25 Injector Assembly with o-rings.
Refer to the chart below if you are not sure, noting that most valves are set up as "Down Flow," but some are made to operate as "Up Flow" and this determines which color to select.
