The WV-XS is designed to be fitted over an egress in an external wall (typically a builder will create a hole in a full-fast wall / brickwork). Great for kitchen rangehoods or bathroom/toilet ceiling exhaust fans. The slim line design makes this vent both architecturally and aesthetically aligned with modern home values and design requirements. The WV-S is also recognised as the go-to vent for bushfire rated areas and for coastal properties as it is constructed from 316 stainless steel with a powder coat finish.