BSP1 Stealth Vent Push-InAutomatically cuts its own “ventilation” hole during installation, secures itself to the flexible cover material, seals itself preventing rain/snow entry and shelters the vent opening to prevent bug/element entry.Part #:315-BSP1Manufacturer:SHRINKWRAP ACCESSORIESManufacturer Part #:BSP1Order In Multiples Of:1Case Quantity:100 AttributesDescriptionStealth vent – Push-inCase100 Model Variations315-BSV1BSV1 Stick-On Vent