
Prio® is a trade mark of household water filters designed and marketed by DWT Deutsche Wassertechnologien GmbH, Germany. They are known under Prio® brand name on Western Europe and American markets, and under HB Water Filters brand name in Eastern Europe.
Established back in 1996, HB/Prio® is currently the leading international manufacturer of various, from small to mid-size, originally designed, drinking water treatment systems. Due to so much experience in marketing of this kind of product we are now able to provide our customers with the best value for money water filters found on the market. Large scale production is possible due to strong manufacturing and engineering abilities provided by own ISO 9001 and ISO 14001 certified manufacturing facility.
All their products are proprietary designed water filters that combine industry’s best practices, parts and media with originally designed technologies. Following below are few examples that show the company's innovation in the market.

KDF® Media
Designed specifically for removing or reducing chlorine and water-soluble heavy metals. It controls scale, bacteria and algae, even in hot water. The process medium received NSF International Certification and is certified by NSF to NSF/ANSI Standard 42 – Drinking Water Treatment Units – Aesthetic Effects. Thanks to KDF®55, their filter cartridges provide longest service life and best purification.


Ultrafiltration
Ultrafiltration membranes have pore sizes in the range of 0.01 – 0.05 microns, which contributes to the production of high-quality water; the pore-size range means that the purification process is characterized by a high removal capability of bacteria, viruses, colloids, and silt. PRIO are early adopters of UF membranes (0.01 microns) that proved to make their undersink and countertop water filters the best compact filtration systems for household use.


Reverse Osmosis
Reverse osmosis (RO) is a water purification process that uses a partially permeable membrane to separate ions, unwanted molecules and larger particles from drinking water. Reverse osmosis can remove many types of dissolved and suspended chemical species as well as biological ones (principally bacteria) from water. PRIO is offering original, made in Japan, Toray film R.O. membranes for their best water filtration machines, including advanced direct flow R.O. systems.


Schungite Media
Schungite is a lustrous carbon mineral rock deposit and is extremely rare on our planet, with most of the known deposits being in the lake region of Karelia, Russia. Schungite has scientifically known unique healing, mineralization and antibacterial qualities, and has been used for hundreds of years to heal wounds and restore health. PRIO offers optional Schungite post-filter for their R.O. systems which contains activated carbon and genuine Karelian Schungite.


Invortex® Technology
PRIO patented (U.S. Patent 8,382,980) method to double the service life and purification capacity of the granular activated carbon in a filter cartridge, with a helical partition. It increases the water path inside filter cartridge, suppresses the bypass channel developing, and extends the contact time between GAC and water leading to much improved purification.

K875 GAC Filter Cartridge with Invortex

Conventional GAC Filter Cartridge

Activated Carbon
Activated carbon removes hundreds of substances including contaminants and other chemicals, odor and bad taste from water. Just 4 grams of activated carbon has a surface area equivalent to ~6400 sqm. It’s the massive surface area that allows active carbon to be effective in adsorbing dangerous contaminants. PRIO uses only the best activated carbon such as made by Norit® to deeply purify water making it safe and vital, and to meet and exceed NSF requirements.

K875 GAC Filter Cartridge with Invortex

Conventional GAC Filter Cartridge