The "Turbo Ventilator FRP Base" is an air ventilator designed for roof mounting. It is constructed using FRP (Fiber-Reinforced Plastic), RL (Roof Light), pigmented, and GP (General Purpose) materials. The thickness of this ventilator ranges from 1.5 to 2.5 mm, with dimensions measuring 1700 mm x 2000 mm. It is available with frame diameters of 21, 24, and 36 inches.