1M-4PK 1-Micron Sediment Water Filter Cartridge， 4-Pack<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>4-Pack of Standard 10" 1 Micron Sediment Filters</li><li>This is a filter for a standard Reverse Osmosis Water Filtration Unit or any type of Water Filtration Unit with 10" housing</li><li>Lifetime: Replace two or three times a year， depending on the water quality</li><li>This filter is wrapped and sealed and meets NSF Standards and Regulations</li><li>Dimensions: 10" x 2.5"</li></ul></div><img src="http://ecx.images-amazon.com/images/I/61NqnJLGtiL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51ducMArD2L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51zN9HN14nL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51xGF%2BnMvJL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/513G8C8g98L.jpg" noproxy>