Description Reducing Washer These reducing washers are used when connectors are smaller than the knockout hole they are intended to fill, they reduce knockout holes in various size increments. Primus Cables' all steel construction ensures a strong, secure and durable installation of connector and conduit to the box or enclosure. Specifications Part Number Trade Size NPNB-RW7550 3/4" to 1/2" NPNB-RW10050 1" to 1/2" NPNB-RW10075 1" to 3/4" NPNB-RW125100 1-1/4" to 1" NPNB-RW12550 1-1/4" to 1/2" NPNB-RW12575 1-1/4" to 3/4" NPNB-RW150100 1-1/2" to 1" NPNB-RW150125 1-1/2" to 1-1/4" NPNB-RW15050 1-1/2" to 1/2" NPNB-RW15075 1-1/2" to 3/4" NPNB-RW200100 2" to 1" NPNB-RW200125 2" to 1-1/4" NPNB-RW200150 2" to 1-1/2" NPNB-RW20050 2" to 1/2" NPNB-RW20075 2" to 3/4" NPNB-RW250100 2-1/2" to 1" NPNB-RW250125 2-1/2" to 1-1/4"" NPNB-RW250150 2-1/2" to 1-1/2"" NPNB-RW250200 2-1/2" to 2" NPNB-RW25050 2-1/2" to 1/2" NPNB-RW25075 2-1/2" to 3/4" NPNB-RW300100 3" to 1" NPNB-RW300125 3" to 1-1/4" NPNB-RW300150 3" to 1-1/2" NPNB-RW300200 3" to 2" NPNB-RW300250 3" to 2-1/2" NPNB-RW30050 3" to 1/2" NPNB-RW30075 3" to 3/4" NPNB-RW350100 3-1/2" to 1" NPNB-RW350125 3-1/2" to 1-1/4" NPNB-RW350150 3-1/2" to 1-1/2" NPNB-RW350200 3-1/2" to 2" NPNB-RW350250 3-1/2" to 2-1/2" NPNB-RW350300 3-1/2" to 3" NPNB-RW35050 3-1/2" to 1/2" NPNB-RW35075 3-1/2" to 3/4" NPNB-RW400100 4" to 1" NPNB-RW400125 4" to 1-1/4" NPNB-RW400150 4" to 1-1/2" NPNB-RW400200 4" to 2" NPNB-RW400250 4" to 2-1/2" NPNB-RW400300 4" to 3" NPNB-RW400350 4" to 3-1/2" NPNB-RW40050 4" to 1/2" NPNB-RW40075 4" to 3/4" NPNB-RW600400 6" to 4" What's in the box What's in the box Qty 1 - Reducing Washer