We have available pneumatic foot switches for when yours are broken.
They have 3 ports,(1/8" size ports) and come with a lock position and guard.
Working Medium - 40 Micro Filtered Air
Two Position (on/off), 5 Way
Exhaust Outlet, G 1/4"
Motion Pattern, Direct Drive Type
Working Pressure range, 0 - 0.8 MPa
Operating Range Temperature, 0 - 60oC