This is a Trade-Only product and should only be installed by a licensed professional. (Find an experienced installer.) The SWDV-200 is designed for all tin and tiled roof applications and easily retro-fits onto existing 150mm roof flumes. Tested to increase air flow by >40%, therein lowering the load on electrical motors and dropping the operating decibel reading of a rangehood motor by up to 30%. High-flow roof vent for all tin and tiled roofs: Weight: 2.3kg Dimensions: (30.6×30.6×28)cm
