Geekpure 20-Inch Carbon Block Replacement Water Filter Cartridge for Whole House System - 4.5" x 20" -5 Micron-Pack of 4

Specification: FEED WATER PRESSURE: 40 - 100 PSI TEMPERATE:40-110°F/5-45°C PH:3.0 -11.0 MAX TDS :1000 PPM TURBIDITY < 1.0 NTU MAX SDI <4.0 HARDNESS < 5 GPG Shelf life: 3YearsMore valuable information: ?What is dimension of the Geekpure Replacement Water Filters? It is 4.5"ODx 20" height and standard. ?What is the function? Carbon block filter, Remove chlorine, taste & odors, very f...