CNAOHGHN

CNAOHGHN Rotary Turbine Ventilator Rotating Chimney Cowl Cap 304 Stainless Steel Cowl Bird Guard Spinner Anti Downdraught Top All Purpose Chimney Cowl <b>ROTARY TURBINE VENTILATOR</b>: Base diameter fits most standard chimney with base diameter will fit standard chimney pots, robust stainless steel construction <b>ROTARY CHIMNEY COWL CAP</b>: Stainless Steel Chimney Cowl Cap Very effective in preventing wind and increasing ventilation...