[One-piece housing]: Hygienic one-piece housing, No-welding No-rust No-crack No-leak; Lead-free 304 stainless steel; Product includes: 1x filter, 4x adapters, 1x manual, 5x gaskets; [NSF/ANSI 42 standard]: Filter element meets NSF/ANSI 42 standard, improve taste and reduce contaminants; Fit for municipal water; [320G Long-lasting & high-flow]: 320 gallons long life, 3L/min water flow, money-saving and no-waiting; [360°rotation & 2µm filtration]: freely-swiveling allows water output at any direction; reduce contaminants up to 2µm: rust, dirt, sand, turbidity; reduce odor, smell, color and chlorine; improve taste; ***CAN’T REDUCE TDS*** [Filter cartridge replacement]: Max 320 gallons or 6 months (depends on the water quality); Other types of replacement cartridge for different purpose: PC filter (ASIN#B0995FZ839)- improve taste, anti-clogged; CRM filter (ASIN#B07S99GT43)- reusable filter, reduce sediment; PAC filter (ASIN#B07JG3941M or ASIN#B07VQ6GD3K)- long-lasting, high-flow; 5in1 filter (ASIN# B09BD1721L)- reduce heavy metals (99.6% lead), multi-functional; Chloramine filter (ASIN#B09L7Y6Q5D)-reduce chloramine & chlorine;