Stainless Steel Roof Caps, with Rubber Seal Strip, Roof Hatch Lid Basement Vent Door Manhole/Cellars Exit Cover with Pneumatic-Hydraulic Rods

Specifications:Inner diameter500mm*500mm,550mm*550mm,600mm*600mm,650mm*650mm,700mm*700mm,750mm*750mm,800mm*800mm,850mm*850mm,900mm*900mmMaterial: Stainless steelSealing strip: Rubber sealing strip embedded in the roof skylight cover frameDesign: Snap lock design, easy to lock, secure the hatchMulti-function: escape hatch cover, basement exit cover, cellar coverHydraulic rod: Comes with 2 hydraulic support rodsEasy to install: Each unit comes with pre-drilled mounting holesPackage includes:1*Stainless steel cover

• Rooftop Hatch Cover Plate: This roof skylight cover is made of 304 stainless steel, which is rust-resistant and durable, and can withstand hail, heavy rain and high winds with strong load-bearing capacity.
• Support Rods: 2 pneumatic hydraulic rods can easily help you open or close the attic skylight cover, the maximum opening angle is 90°, with stainless steel hinge connection.
• Lockable Handle: 90° rotating handle opens and closes the rooftop access cover from the inside, not from the outside, providing a secure entry point to the rooftop.
• No Rain Leakage: The rubber sealing strip is embedded in the frame of the roof skylight cover, preventing rainwater from seeping through the gaps, and at the same time providing more sound insulation and heat preservation.
• Easy Installation: The window cover can be drilled and mounted (with bolts). If you want to make it more waterproof, fill the gap with glue.