Description
Lock the vent cap permanently in position by inserting and fully tightening the grub screw followed by the Atkinson Shear Screw, which snaps off when tightened, leaving nothing proud of the surface that can be used to remove it.
Please note: this can only be fitted on tanks that have a 2″ male fitting for the vent. Please ensure that you have the correct vent outlet before ordering.
For more tank security options – see here
