Flettner is the global market leader in the design and manufacture of eco-friendly,wind-powered rotary roof ventilators that are fitted extensively to all types of trucks, vans, buses, trailers, RV's, horse boxes, garden buildings/storage, glider trailers and other special vehicle conversions. Fitment of a Flettner Ventilator:- • Disperses excess heat • Reduces condensation, damp, mould growth and interior surface rusting • Combats the build-up of stale air, airborne germs, spores and bacteria, musty odours, cigarette smoke or hazardous fumes The ventilators are manufactured in the UK, can be fitted in less than 30 minutes, require no maintenance, wiring or batteries, are quiet, draft-free and function even when stationary subject to a light breeze of c.5 mph. Please see our new website at www.flettner.co.uk for full details.