I use these in player piano restoration to join hoses or to connect a suction motor to the reservoir on the foot pump assembly. For 3/4" hose.
1 1/4"/1.25" OD Brass Straight Connector For Player Piano Restoration 2" Long
7/8" OD Brass Straight Connector For Player Piano Restoration 1-1/2" Long
1-1/8" OD Brass Straight Connector For Player Piano Restoration 2" Long
5/8” OD Brass Straight Connector For Player Piano Restoration 1 1/4” Long
1-1/2" OD Brass Straight Connector For Player Piano Restoration 2" Long
Hammond Elegante Percussion Board 023-049605 124-000340 075-000389 PCB