Spring Extension Fits Brand Vulcan Hart For Use With Mfr Model Number ERC225 ERC225F ERC40 ERC40F ERC50 ERC50F ERC85 ERC85F ERD225 ERD225F ERD40 ERD40F ERD50 ERD50F ERD85 ERD85F VB21 VB2S VR1C VR2C VR3C VR4C VR5C VR6C VR7C VTMB2 VTMB22 For Use With ERC225 ERC225F ERC40 ERC40F ERC50 ERC50F ERC85 ERC85F ERD225 ERD225F ERD40 ERD40F ERD50 ERD50F ERD85 ERD85F VB21 VB2S VR1C VR2C VR3C VR4C VR5C VR6C VR7C VTMB2 VTMB22