Nylon knockout seals effectively plug electrical knock-outs. They are molded from 6/6 nylon and are colored gray to resemble galvanized steel. Variants included in this assortment fit punched or drilled holes ranging from 7/8 to 2-1/2 in Dia.
| Type | : | Knock-Out Seals |
| Material | : | Nylon |
| Color | : | Gray |
| Diameter | : | 1/2 in |