Okato Trio Replacement Filter Softening Bundle KH-K7-K3


Trio Combo1 K3 KH K7B 0.1μm

For Ultrafiltration Softening, Antibacterial with a universal carbon-fibre filter block that deeply purifies to 0.1μm whilst softening moderately hard water. 

For use in Okato Trio Softening Configuration, Filters no.1-2-3

Triple filter pack designed for the Okato Trio Softening Counter Top Filtration System. Sorption filter with an additional sub microfiltration stages for deep purification from dangerous contaminants: chlorine, heavy metals, pesticides, petroleum products, common toxins, allergens, bacteria and cysts. ion-exchange resin to reduce limescale build-up in moderately hard water. Deep ultra-filtration down to 0.1μm with anti-bacterial mix. Contains active ionic silver.

K3 - KH - K7B Combination


K3: High sediment holding capacity with increased amount of selective ion-exchange Aqualen fibers to effectively remove colloidal and dissolved iron. CarbFiber Block technology contains granulated activated coconut carbon with an Aqualen mix. Filters particles down to 5 micron, removes active chlorine, organic compounds and heavy metals. Contains active ionic silver.

KH: Ion-exchange resin to reduce limescale build-up in moderately hard water (limescale builds in 10-14 days). The patented ion-exchange fibre achieves a contact area of ​​water and sorbents 42 times higher than that of granular carbon filters (with a filtration rate four times higher). Can be be regenerated multiple times using salt. (limescale builds in 10-14 days).


  • Softening of moderately hard water. 
  • Scaling prevention.
  • Easy recovery in home conditions. 

K7B: Two stage filtration. Ultra-dense CarbFibre Block for deep filtration of residual concentrations of organic contaminants and heavy metals at 0.8μm for optimal purification. 

A hollow fibre membrane removes particles at 0.1μm providing 99.99% protection from bacteria. Contains active ionic silver.


Installation Instructions:

See our help and resource centre for Okato installations. 

Replacement Cartridge Installation Sequence:

Cartridge Order 1st` 2nd 3rd
Solo K7B
Duo K7 K7B
Trio Combo Softener K3 KH K7B
Trio Combo Standard  K3 K7B K7
Nature K7B


Filter lifespan

The service life of the water filter is 5 years from the manufacturing date. The water filter should be replaced upon expiration of the service life. 

Service life of the in-use replacement filter cartridges:  

K3-K7B-K7, 8000 litres maximum 1.5 years.

The service life of the replacement filter cartridges is set for filtering water to meet existing sanitary standards. The service life is calculated from the replacement filter cartridges manufacturing date. 

Shelf life of the water filter before operation is maximum 3 years at temperature from +5 to +38 °С, without removing the packaging. 

Warranty period of the water filter operation (excluding the replacement filter cartridges) is 1 year from the purchase date. 


Purify for deep purification and activation with active ionic silver compound.


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