Standard For PG21 glands
Dust cap height 0.25 Ext. Dia. 10
Dust cap height 0.25 Ext. Dia. 15.5
Dust cap height 0.25 Ext. Dia. 18.5
Dust cap height 0.25 Ext. Dia. 23
Dust cap height 0.5 Ext. Dia. 29
Dust cap height 0.5 Ext. Dia. 35