Folks, Any experience with the Pactrade Marine Solar Ventilator II http://www.pactrademarine.com/p246/Solar_Powered_Ventilator/product_info.html Seems to be rather similar to the Marinco Day/Night Solar Vent http://www.marinco.com/en/n20704s -- Jonathan M Bresler S/V Constance Alberg 30 #262 Annapolis/Eastport MD