Culligan S1A Whole House Standard Water Filter， 16，000 Gallons<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>The S1A pleated cellulose standard duty filtration cartridge works in HF-150A， HF-160， HF-360A， and HF-365 whole house filtration systems</li><li>Perfect for residential homes， helps protect appliances and pluming from sediment and scale</li><li>Features a flow rate of 4 GPM and filter life of 4 months/16，000 gallons (depending on usage and water conditions) Not recommended for untreated well water</li><li>Reduces: sediment， rust， scale， dirt， coarse sand and sand</li><li>The HF-150A is tested and certified by WQA against NSF/ANSI Standard 42 for materials safety and structural integrity only</li><li>Micron rating of 20 (the smaller the micron rating， the smaller size patricle the cartridge will filter)</li><li>Compatible with Culligan model HF-150A， HF-160， HF-360A， and HF-365</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51-RKkc6k2L.jpg" noproxy>