Commercial water filters are developed to suit the demands of organisations and sectors that need a constant, clean supply of pure water. These filters are frequently used in hospitals, the food and beverage industry, and other contexts involving large volumes of water.

The carbon filter is a popular commercial water filter type that employs activated carbon to purify water. Chlorine, sediment, and volatile organic compounds (VOCs) that can alter the flavour and odour of water can be effectively removed by carbon filters. Various types of activated carbon can be used to optimise the removal of specific contaminants , such as granular coconut shell activated carbon ( removal of chlorine  or oxidisers), or Bituminous activated carbon used typically for reduction of organics in water.

Reverse osmosis (RO) systems, which use a semipermeable membrane to remove dissolved particles from water, are another type of commercial water filter. Heavy metals like lead and mercury, as well as minerals like salt, chloride, and fluoride, can be effectively removed by RO systems. However, installing and maintaining RO systems can be expensive, and the filtration process itself can result in significant water waste.  There are other membrane  systems , such as Nanofiltration, Ultrafiltration and Microfiltration, which can provide more cost effective solutions.  VPMF( Variable Pore Micro Filtration  Technology ) is leading edge technology that can deal with poor water quality and high turbidity water, without the drawbacks of membrane fouling.

Ion exchange systems provide a highly effective way of removing dissolved and ionised impurities in water. The more well know ion exchange resin  is a cation resin that is used for  softening water and reducing the permanent hardness metals calcium and magnesium. A mixture of cation and anion resins can be used to deionise water and remove all dissolved impurities.