Features: 0.01 Micron Premium Filtration Performance 10 Inch Stainless Steel Shell Household Kitchen Under Sink Water Filter System, more resistant to corrosion than plastic, structure integrity and durable.3-Stage 0.01 Micron Ultra Filtration Syestem, PP--UF--CTO ( Sediment Filter-- Ultrafiltration Filter--Fine Activated Carbon Filter), Remove 99.99% Residual Chlorine, Odor & Bad Taste Direct Connect, Easy Installation and Quick Change, 1/2" Male thread inlet and outlet installation connection, working pressure: 0.1 - 0.4 mpa. Simple and Flexible, no electricity needed, no waste water produced and no storage water tank required, cost-effective and eco-friendly. Filter Element Life; PP Sediment Filter: 3 - 6 months; UF Ultra Filtration Filter: 12 - 24 months; CTO Fine Activated Carbon Filter: 6 - 12 months, depending on your source water and usage. Specifications: Item Name: Under Sink Water Filter System 3-Stage Filter Elements: PP--UF--CTO ( Sediment Filter-- Ultrafiltration Filter--Fine Activated Carbon Filter) Tank Shell Material: Stainless Steel Tank Size: 10 Inch Connect Size: 1/2" Product Dimension: 35.5 x 11.5 x 35.8cm Product Weight: 3.8 kg