Watts-FPP-0.2-40-222 Flowmax HP 222 Pleated Filter 0.2 Micron 40"Watts Flowmax HP Series 40" Pleated Sediment Filter 0. 2 Micron High efficiency pleated polypropylene filtration for demanding whole house and RO pre treatment applications 0. 2 Micron Rated 40" x 2. 5" 222 Flat End Cap FDA Compliant The Watts FPP 0. 2 40 222 Flowmax HP filter delivers fixed pore 0. 2 micron filtration with significantly greater surface area than wound or melt blown alternatives. Built entirely from FDA compliant polypropylene, it