High Quality Water Filters


Rajah Filter Technics

Rajah Filter Technics provides high quality water purification solutions for Point of Use and Point of Entry (POU/POE) Systems in both residential and commercial applications.

About Us

High Quality Water Filter Solutions

We offer all kinds of activated carbon water filters in both block and granular forms. All our water filters are made from premium quality coconut shell based activated carbon to ensure low ash content and optimum purification.

We believe in continuous learning and therefore R&D is always a part of life at Rajah Filter Technics and we are always looking for something new. Our production processes are streamlined and continuously checked for optimum productivity.


Carbon blocks for removal of Chlorine, Lead, Chloramine, Biostatic, Arsenic and multi specialized blocks with different activity.

Nano Silver-impregnated activated carbon for Bacteriostatic and Biostatic with different percentage of loading from 0.05% to 0.3% of different mesh sizes like 8 x 30, 12 x 30, 4 x 8, etc.


Specialized Granular Activated Carbon with different mesh sizes (ASTM) (6 x 12) (8 X 20) (12 X 20) (20 X 50) (40 X 140) (80 x 200) (100 X 325) etc.


Specialized carbon for removal of Lead, Chloramine, VOC’s and also for combined claim.


All types of impregnated activated carbon

Water Filters

The Discovery and History of Activated Carbon

The actual “discovery” of charcoal was likely long before the first recorded use of the substance in about 3750 B.C. Because charcoal burns hotter than wood, it was often used for melting and combining metals in ancient Egypt. The Egyptians eventually discovered that...

read more

How a Coconut Becomes Activated Carbon

Turning Coconut into Charcoal Another term for activated carbon is activated charcoal. Both of these terms refer to a charcoal material that has been reheated and oxidized (“activated”) to increase porousness. So, one of the necessary steps toward turning a coconut...

read more

Sourcing Your Carbon Blocks from Overseas?

Carbon blocks have become a popular product worldwide because of their perfect applicability in the manufacture of water filtration systems. As a material, carbon is widely available, so there are a variety of carbon block manufacturers across the globe. Businesses...

read more

How to Choose an Activated Carbon Filter

What is Activated Carbon? Activated Carbon is just stuff made out of carbon molecules, from materials like coconut or peat, which is ‘activated’ by heating it to high temperatures inside a special kiln. This causes it to develop an extremely elaborate network of pores...

read more

How Are Activated Carbon Blocks Made?

  In water filtration, activated carbon blocks remove contaminants and impurities by absorbing them from the water. Due to the high surface area of activated carbon, it contains many small pores that can trap organic or volatile compounds. Carbon filters made from...

read more

See you at Aquatech Amsterdam

Aquatech Amsterdam Between October 31 and November 3, 2017, over 21,000 water professionals from more than 139 countries will meet in Amsterdam for Aquatech Amsterdam. Over 850 exhibitors are also expected to attend the world's largest trade show related to process,...

read more

How To Install An Activated Carbon Filter

An activated carbon filter is in many ways, the backbone of your water purification system. Most kinds of water purifiers use activated carbon blocks in one or more stages of the purification process. The most common type of filter is an RO filter which has a three...

read more

Silver’s History Of Water Filtration

Silver was one of the three metals, along with bronze and gold, that we know ancient people used in their solid forms for water purification and filtration as far back as the Persian Empire. Documents attest that some emperors would refuse to drink water that wasn’t...

read more


No equipment required.