20'' PP Water Purifiers 1.20 inch PP Water Purifiers 2.The prodact are have liability insurance. 3.Micron Rating (Nominal): 5 Micron 4.Filter Media: Polypropylene 5.Replaced every 3-6 months depends on water quality. 6.Change when color darkens or water flow slows 20'' PP Water Purifiers Model No.:20''-1 20'' PP Water Purifiers Type:1stage 1stage:Pre-filter 5 Micron PP filter
