Filter systems should be DESIGNED to meet a set of requirements.
Filters typically remove suspended solids; dirt. Devices that are intended to remove dissolved materials are technically not filters, but those devices may be installed in filter-type housings or systems.
There are differences of opinion among those posting to this board about whether to use a backwashable filter or a replaceable filter. I am in the replaceable filter camp for a couple of reasons.
1. They can remove smaller particles and the cartridges are produced with the quality control to ensure that they will perform as advertised.
2. Systems are less expensive to install and in the cases that I work with have the lowest cost per 1000 gallons of water for systems that meet the EPA requirements that my systems must meet.
Backwashable filters can remove 50 micron particles without pretreatment of the water. Municipal systems use backwashable filters to remove particles down to the range of 1 or 2 microns by using approved chemicals to cause the small particles to agglomerate to filterable size. Swimming pool filters work in a similar manner but the chemicals are not always approved for use in potable water. Operators of water treatment plants use process controls and laboratory analysis to make sure the filters are working. There was an outbreak of cryptosporidiosis in Milwaukee in the '90s that killed more than 20 people when the chemical pretreatment process got out of control. That is not a system for homeowner use.
I install systems for small public water supplies that typically use 1000 to 20,000 gallons per day, and flow rates from 5 up to about 70 gallons per minute. The "Big Blue" size housings, which use a 4.5" diameter x 20" long filter can be connected in parallel and are often the most economical for systems in that range. They can be used to remove suspended solids or precipitates, and there are activated carbon cartridges that will remove organics, chlorine, and disinfectant byproducts.
Larger housings such as the Harmsco "whole house" filter housings are more economical when a lot of cartridges are required. Links are provided below.
There are ways to reduce the demand on the filter system. One way is to use a pressure tank after the filter to level out the peak flows from toilets and household faucets. If you check your water meter to determing the peak flow in typical 15 minute, 30 minute, and 60 minute periods, you would get a good idea of your real demand requirements. You should monitor actual use; not a special case resulting from, "OK everybody, flush all the toilets and turn on all the showers."
From your comments about chlorine, I infer that you are on a municipal supply. That could eliminate the need for removing sediment and you probably want to remove treatment chemicals.
Determine requirements (flow and what you want to remove), and define what is important to you (capital cost, operating cost, life cycle cost, do-it-yourself of contracted, ????). Then shop for the system that will meet your needs.