Dip & Fill Point blank plate
7237Z: Blank plate for VOH500 series manhole covers only.
VOH-16: Dip & Fill blank plate, through hole for VOH410 series manhole covers.
VOH-16M: Dip & Fill blank plate, through hole for VOH410 series manhole covers. (Metric)
VOH700TH-13M: Dip & Fill blank plate, blind tapped blank for VOH750 series manhole covers.(Metric)
Overfill Point blank plate
VOH200-14: Overfill blank plate, through hole for VOH410 series manhole covers.
VOH200-14M: Overfill blank plate, through hole for VOH410 series manhole covers.(Metric)
VOH700TH-14M: Overfill blank plate, blind tapped blank for VOH750 series manhole covers.(Metric)
Vapour point blank plate
7237Z: Blank plate for VOH500 series manhole covers only.
AVV3.0-10M: Vapour point blank plate, blind tapped blank for VOH410 & VOH750 series manhole covers.(Metric)