CTO Filter vs GAC Filter, Different Between of Them

CTO water filter cartridges and GAC water filter cartridges are in the category of activated carbon water purifiers, which are mainly used in RO water filtration systems and whole house water purifiers. So what's the difference between them? This article will tell you the answer.

GAC Filter Cartridge

The main raw material of the GAC(Granular Activated Carbon) filter cartridge is a coconut shell, apricot shell, walnut shell, and other fruit shells or coal such as anthracite. Granular activated carbon filters are made of ground carbon, which is loosely fixed in cartridges or other containers.

Activated carbon formed by activation with these as raw materials forms many tiny pores, but the size distribution of these pores is not uniform, and according to the size of the diameter is divided into micro-pores below 2nm and large pores above 50nm. Therefore, carbon block filters have a large surface area, which allows them to filter out more water. They are also very effective in filtering particles, heavy metals, and other contaminants.

CTO Filter Cartridge

CTO(Carbon Rod Filter Cartridge) filter cartridges are formed by mixing the above-mentioned activated carbon powder with an inorganic liquid binder under high pressure. Compared to GAC water filter cartridges, the CTO filter cartridges have more precise filtration performance with the help of compact activated carbon blocks. Although the water flow rate is slower compared to GAC because of the compact structure. But first, longer service life is obtained. You can imagine how fast the water ablates to the particles and solids respectively, and surely the solids are a bit firmer. And secondly, improve the purification rate and ensure the effectiveness of the carbon block filter.

Wide Range Of Applications

Activated carbon filtration systems have always been ideal for filtering residual chlorine, unpleasant odors, and tastes. Each has performed at different stages of many water purification systems. Assuming a choice between the two, choose the aspect that is important to you, a high-flow rate granular carbon filter or a CTO filter cartridge with further purification effects.