Base Length: 6"; Upper Hole Diameter: 5"; Cap Diameter: 5" ; Cap Height: 2"; Pipe Outer Diameter: 3.5"; Pipe Length: 3.6"; Total Height: 7.1". Stainless steel floor drain cover resists rust and corrosion, ensuring long-term durability even in harsh outdoor conditions like gardens and balconies Non-blocking roof drain features a large displacement design to prevent clogs from leaves, flowers, and debris, maintaining smooth water flow Stainless steel construction provides extra strength, making this balcony floor drain resistant to heavy foot traffic and extreme weather Removable 5 inch dome strainer allows effortless cleaning, letting you easily clear accumulated dirt without disassembling the entire unit Spatter-free installation ensures a secure fit with no messy splashes, making the stainless steel strainer simple to set up About the Manual Measurement: Please notice that due to the possibility of differences between manual measurement and mass production, there may be a slight error of 0.04 to 0.08 inch in the size information provided for reference. 3.5-inch pipe drain withstands heat exposure, making it suitable for sun-exposed rooftops and restaurant patios 5-inch-wide drain port maximizes water flow, preventing overflow during heavy rain in gardens, driveways, and pool areas Stable and secure dome design keeps the rain bucket drainage system firmly in place, even under constant water pressure With 6 inch square flange length, multi-surface compatible drain works on concrete, tile, and decking, making it adaptable for balconies, restaurants, and walkways Outdoor drainage part is ideal for rooftops, terraces, and basements, efficiently managing groundwater runoff in various settings