Share Buttons Chimney damper Block chimney airflow Energy & cost saving Extremely tough yet flexible material Reusable design Available in a range of shapes& sizes Easy installation 5 warranty Key FeaturesModelERS-ASCH-3050Size30*50CMModelERS-ASCH-4080Size40*80CM MODELSIZESpecificationsInstallation InstructionERS-ASCH-305030*50cmERS-ASCH-408040*80cm Related LED Tri-proof batten light-BR Highbay Light C Solar Street Light A LED Sensor Shop Light Shower Hand