Models View all Ducting Reducer, 10in to 4in 2 23 0 M40 x 1.5 Metric Lock Nut, Plastic 0 70 0 Ampseal 35 Position Backshell, 2389807-1 1 29 0 Ampseal 23 Position Backshell, 2389806-1 1 27 0 Ampseal 14 Position Backshell, 2138530-1 0 20 0 8 Pos Ampseal Backshell 2138529-1 0 17 0