Roof Access Hatch Lid, Skylight Ventilation Access Hatch Multiple Size Options for Basements, Manholes, Inspection Openings(50x50cm/19.69x19.69in)

Brand：HSOQNAs a professional building access solution, this roof hatch cover performs well in load-bearing performance, all-weather protection, and ease of installation, providing reliable protection for all types of buildingsProduct name: Aluminum alloy roof access coverMaterial: aluminum alloyColor: dark grayAluminum alloy thickness: 1.2mm/0.047inFunction: protection/security/anti-theft/energy savingFeatures: Strong, high strength, weather-resistant, anti-fadingInnovation: Hydraulic support rod/internal locking/cover wider than chassis (waterproof)Size: Provide common inner diameter sizes and support customizationPackage contents: 1×roof access cover, 4×boltsMeasurement tips: The inner diameter of the chassis ≥ the wellhead opening sizeBottom frame and cover frame: cover outer frame size = bottom frame inner diameter size + 11cm / 4.33inchThings to note:1. Please accurately measure the size of the hole before installation, and ensure that a 1-2 cm installation margin is reserved for the product all around2. Do not place heavy objects or stand on the surface of the cover

• Stable load-bearing: Made of 1.2mm thickened aluminum alloy, with an 8cm wide reinforcement in the center of the cover. The load-bearing capacity is up to 30kg, the structure is stable, and it is not afraid of long-term outdoor use and has a long service life
• Safety locking: Using a 90-degree rotating opening and closing handle, it can be easily operated with one hand. The built-in locking mechanism automatically locks after turning in place to prevent illegal opening from the inside and ensure the safety and reliability of the passage
• Noise reduction seal: High-quality rubber ring can minimize friction noise during operation while forming a waterproof, windproof and pest-proof sealing barrier. Ensure quietness and prevent debris from entering
• Easy installation: Our roof access skylight covers are easy to install, taking only minutes and can be completed quickly. Place the product in a suitable position and drive the bolts through the reserved holes. You can also use sealant to seal the gaps
• Multi-scenario applications: Provide convenient roof access for various environments such as home decoration, schools, manufacturing factories, warehouses, and businesses. Can also be used as escape hatch cover, basement exit cover, emergency exit cover, manhole cover, cellar cover, manhole cover