120mm PU insulation for ve temperature up to 28°C "Press and seal " Ensure perfect sealing in Case of no operation "Snap on push and Release on pull " For efficient operation with maximum energy saving Rising Hinges in metal body with 3D adjustment. Plane and smooth surface enables maintaining highest standard of hygiene and cleanliness Specially designed bottom gasket for complete hermetic sealing Heavy duty steel reinforcements in Door Blade for extreme rigidity Easily replaceable EPDM gasket Frame Heaters in all 4 Sides of the wall Frame for De-icing mechanism