Buna | Compression Coupling | Couplings | Female Adapters | Hex Reducer Bushings | Male Cam x Insert Barb | Rubber Cap | 1-1/2" x 1/2" | 1-1/2" | 1" x 3/4" | 1" x 3/8" | 3" x 3/4" | 4" x 1-1/2"