Ladder chain used on player piano to connect roll motor and transmission.
DS2-240 Player Piano Vacuum Motor/Suction Box w/dual Volume Control 220/240volt
1-1/4 1.25" Reinforced Hose per Foot Player Piano Vacuum Motor/Suction Box 12"
Player Piano Vacuum Motor/Suction Box Complete Automation Kit w/Rewind & Shutoff
NOS Aeolian (1960's and later) Player Piano Wind Motor Slide Valve Pushrods
Player Piano Electric Vacuum Motor/Suction Box,Play/Rewind Volume Ctrl DS2-120
Player Piano Electric Vacuum Motor/Suction Box w/1 Volume Control 220/240 volt
