Replacement Cylinder for MK 7 Super Vent Opener

Unique, ultra strong, finned aluminium cylinder with both internal and external finns - this gives a more efficient heat exchange between the wax inside the tube and the surrounding air.

Operates in temperatures between 60*F / 16*C up to 75*F / 25*C

Dimensions: 31cm long body. 

Click Here to see full and comprehensive fitting instructions for this Bayliss Cylinder.