Important Notice
This item is made-to-order exclusively for you once your order is placed. As a result, it is not eligible for cancellation or return under our standard policy. Your statutory rights remain unaffected.
Monument 2580U 5 to 10mm Vent Sizing Gauge used to measure the size of the slots and thus to calculate the area of ventilation provided by a vent where this info is not on the unit.
Gauge is stepped in increments of 1mm and will measure vent slots from 5mm up to 10mm. Made from Stainless steel.