Stainless steel filter mesh,precision is up to 40 to 60 micrometer Unique swivel sludge scraper design,no need to disassemble,instantaneous cleaning Effectively remove limescale,thermonatrite,plankton,alga,rust,sand grain and other particulate matter from water Can be install on pre-waterway of home main water pipe,purify your whole household water.Also can be installed on the waterway of washing machine or water purification system to improve their lifespan Filtration accuracy:0.005mm Color:white +blue material:plastic Size:142*113*55mm Package Contents: 1 x water purifier filter(in pp filter) Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.