V100WPCBL: 100mm

•  Length 114mm x Width 114mm x depth 112mm (from duct outlet to front of grille) depth from front of grille to       back that sits flush on wall (82mm)

V125WPCBL: 125mm 

• Length 175mm x Width 175mm x depth 112mm (from duct outlet to front of grille) depth from front of grille to back that sits flush on wall (90mm)

V150WPCBL: 150mm 

• Length 175mm x Width 175mm x depth 112mm (from duct outlet to front of grille) depth from front of grille to back that sits flush on wall (90mm)