The periscope vent square to round is a robust adaptor, that is made up of plastic polypropylene. It is used to connect the ventilator to a duct providing a horizontal or vertical extension to an underfloor ventilator, it also adjustable to a different wall or cavity. Additionally, this vent is resistant to decay, rot and any other type of damage.
Benefits
Manufactured from high-quality plastic polypropylene
Used to connect the rear opening of a telescoping vent to a standard underground drainage pipe