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Home / Products / HYDRA BIG 10 DUO Rainmaster 1” - House Water Filter for Well Water
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HYDRA BIG 10 DUO Rainmaster 1” - House water filter

HIGH-PERFORMANCE BIG twin filter housing with one-piece head

Innovative backwash system with spring-loaded filter cartridge. When the flush valve is opened, the drop in pressure pulls the cartridge downward, cleaning it from the inside as well. A minimum pressure of 1.8 bar is required to ensure backwashing.

Includes hose connector and drain funnel with backflow prevention according to UNI EN 1717-11/2002

Innovative backwash system with spring-loaded filter cartridge. When the flush valve is opened, the drop in pressure pulls the cartridge downward, cleaning it from the inside as well. A minimum pressure of 1.8 bar is required to ensure backwashing.

This filtration system treats water at high capacity cost-effectively and filters contaminants as well as fine particles from the water.

This works through the self-cleaning/backwash pre-filter with 90 microns and a final water treatment by the CB CARBON cartridge.

The CTO 10 BIG 10 mcr - activated carbon block is made of compressed activated carbon and filters contaminants from the water such as chlorine, organic contaminants, light hydrocarbons, solvents, pesticides, insecticides, oils and flavors, impaired taste, impaired odor, fine particles (rust, limescale flakes, sand, scales) and suspended matter.


The filter cleans the water to 10 microns.



Use, scope, dimensions:

The 2-stage water treatment system is designed to save space and is easy to install.

The HYDRA DUO house water filter features a drain funnel/backflow prevention device to protect the drinking water supply.

The HYDRA DUO house water filter is used for filtration and treatment of drinking water,  house water and wastewater, and serves to protect fixtures, pumps, water tanks and other technical systems as well as the pipework.


Technical data:

10" HYDRA BIG DUO filter housing
Dimensions: 515 x 390 x 185 mm (HxWxD)
Operating pressure: maximum 8.3 bar
Temperature range: 4 - 45 °C
Suitable for all standard 10" BIG cartridges with flat gasket
Suitable for drinking water applications



The individual filtration stages:

1 x RLH 90mcr HYDRA BIG - sediment filter polyester mesh
Self-cleaning pre-filtration cartridge – RLH: 90 MIC
filters sand and other particles larger than 90 microns
Service life: approx. 12-24 months (depending on water quality and flow rate)

1 x CTO 10 BIG 10 mcr - activated carbon block
filters chlorine, org. contaminants, light hydrocarbons, solvents, pesticides, oils and flavors, impaired taste, impaired odor, fine particles (rust, limescale flakes, sand, scales) and suspended matter.
Service life: approx. 6 months (depending on water quality and flow rate)


The filter system is supplied in its original packaging, with filter housing, a housing wrench, a wall bracket, screws and two filter cartridges.


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