Plug, to fit A-dec® Solids Collector HVE Hole Plug; Pkg of 10 Plugs off extra HVE hole Easily removed to add HVE 1/2" O.D. x 1/4" I.D. Package of 10 A-dec® is a registered trademark of A-dec, Inc. DCI has no affiliation with A-dec and A-dec has not authorized DCI replacement parts to be used on or in connection with A-dec® products.