Lo Profile Bushing Adapter that features a 10/18 Female inside of a 14/20 Male. There is a 1/2 inch long extension of clear tubing off the grind, similar to a drip tip style joint. These adapters are great for converting pieces with 14/20 Females to also accept a 10/18 Male connection. Simply remove the adapter to go back to a 14/20 connection.