Description:

Trade Size indicated in Chart Indicates Conduit Size For actual OD dimension see Mounting Hole Diameter in chart. Model # 21723 Features: Plastic Knockout Plugs - This Plastic Cplugs knockouts in any enclosure. Use this Knockout Hole Plugs to plug unused knockout holes in box or enclosure Trade Size indicated in Chart Indicates Conduit Size For actual OD dimension see Mounting Hole Diameter in chart.