Feature: 1.pop up push roof air vent large white horse float 2. top of the rangelarge push up roof air vent. 3.frame is made from steel with rubber seal 4.for exceptional waterproof dustproof seal when closed 5.comes with full inside facia panel 6.float trailer caravan rv 7.both handles pushed up allows ful airflow of vent 8. this 3 way air vent Hole Size:502*262MM,Frame Size: 565*325MM,Spring:90mm Height