Roof Ventilator - Stainless Steel Shaft, 14-16" Anodized Aluminium Vanes, Ptfe Cap | Weatherproof, Low Friction, Durable

FEATURES :
* HEAT AND FRICTION RESISTANT PTFE CAP FOR A REVOLUTIONARY "FREE-FLOATING" EFFECT-AIR MOVEMENT LIFTS AND SEPARATES THE TURBINE FROM THE CONTACT WITH THE CENTRAL SHAFT, RESULTING IN NEARER FRICTION FREE MOTION.
* STAINLESS STEEL CENTRAL SHAFT : THIS MAINTAINS RIGIDITY UNDER HIGH STRESS AND LOAD FACTORS.
* ALUMINIUM TRIBAL SUPPORT : WHICH STABILIZES THE CENTRAL SHAFT AND TRIBAL SUPPORT TO ENSURE EQUAL WEIGHT DISTRIBUTION AND REDUCE STRESS ON FASTENING JOINTS.
* ANODIZED BRIGHT ALUMINIUM VANES : DT - 14" 23/DT 16" 26 PIECES OF DOUBLE CURVED VANES SPECIALLY DESIGNED FOR WEATHERPROOF DURABILITY, MAXIMUM WIND DRIVEN EFFICIENCY AND RAIN SPILL DEFLECTION.
* VENTILATOR THROAT ADAPTER, BASE ADAPTER, FLANGE BASE - ALL MADE FOR ALUMINIUM MATERIAL STRENGTH - TESTED TO ENSURE STRUCTURAL INTEGRITY.
* PTFE : IMPREGNATED STAINLESS STEEL BALL - BEARING SELF LUBRICATING AND FULLY CONCEALED TO PROTECT AGAINST DUST.