Ceiling Hatch SH-TT4508S NEW HIKARI

Since the plate thickness of the aluminum frame is 0.8mm, it is manufactured thinner than our company's conventional products.Since it is a slide lock type, it can open/close more easily than conventional products.Since it uses only support brackets for fixing brackets, it can be purchased with a lower price.Ceiling inspection port for indoor use only.Color:SilverL x W (mm):465 x 465Ceiling construction opening size (mm):455 x 455Inner frame board material cutting size (mm):410 x 410Cutting dimension of lid material: 410mmCutting dimension of ceiling material: 455mmOuter/inner frame: Aluminum extruding(alumite finishing)