Compatible water filter for R30-20-BB, S1-20BB, ECP5-20BB 4.5" x 20" pleated cartridge by Global Filters
PWF4520BR Dirt/Sediment Water Filter Cartridge  This replacement cartridge is constructed of pleated polyester which benefits the consumer in two ways. The pleated design provides a very large exposed surface area that gives the cartridge impressive solids-holding capacity. This cartridge is a single membrane which allows for occasional cleaning. Its performance is commensurate to the competition at a lower cost.  Competition Cross Reference   -Ametek (AKA Pentek, US Filter) R30-20BB  -Keystone GPE30-20  Specifications:        polyester media is bacteria and chemical resistant thus the cartridge is suitable for residential, commercial & industrial applications      4.5 x 20”  industry standard universal dimension      fits Culligan, 3M Purification / Cuno Aqua-Pure, GE, Ametek (AKA Pentek/US Filter) ,Sears and many other water filter housings      change cartridge every 6-10 months or upon substantial pressure reduction      operating range:  20-100 psi, 40-100 F temp, pH 4-10      flow rates up to 40 gallons per minute    The smaller the micron rating the better the entrapment capability.