Stainless Steel Roof Caps, for Maintenance Roof, Thick Roof Steel Security Door, Bolts Included, for Residential/Patio/Pergola

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

• Widely Used: Not only can it be used as a loft skylight cover, but also as an escape hatch cover, basement exit cover, emergency access cover, cellar cover, etc, depending on the installation location.
• Weatherproof Roof Hatch Lid: This roof skylight cover is made of 304 stainless steel, sturdy and resistant to hail, heavy rain and high wind blows. Load-bearing strong.
• Seal Rubber Gasket: The sealing rubber strips embedded to prevent rainwater from penetrating through the gaps. Sealing rubber gasket the contact part of the upturned lid and the bottom frame.
• Hydraulic Support Bar: The power support lever that opens the skylight is a new type of opening tool that can be opened freely and has support force.
• Clasp Lock and Handle Design: The padlock makes it easy for you to lock the interior to prevent outsiders from getting in for added peace of mind. Thoughtful handle makes it easy to turn on and off.