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€225,00
€249,75
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HYDRA BIG DUO Rainmaster 1” - Home Water Filter

POWERFUL BIG DOUBLE FILTER HOUSING with a one-piece head

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

Including hose nozzle and drain funnel with backflow protection according to UNI EN 1717-11/2002

Innovative backwashing system with spring-loaded filter cartridge. At The opening of the flush valve is triggered by the pressure drop in the cartridge after pulled down and thus also cleaned on the inside. A minimum pressure of 1.8 bar is necessary to ensure the backwashing.

This filtration system prepares the water in high concentration cost-effective and filters pollutants as well as fine particles from the Water.

This works through the self-cleaning/backwash pre-filter with 50 Micron and a final Water treatment of the CB CARBON cartridge.

The CB-EC CTO 10 BIG 10 mcr - Activated Carbon Block consists of pressed activated carbon and filters pollutants from the water such as chlorine, organic Pollutants, light hydrocarbons, solvents, pesticides, Insecticides, oils and flavors, taste impairments, Odor disturbances, fine particles (rust, lime flakes, sand, Scales) and suspended particles.


The filter cleans the water to 10 microns.



Usage, 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 protection to safeguard the drinking water supply.

The HYDRA DUO house water filter is used for the filtration and treatment of drinking water, household water, and wastewater, serving to protect fittings, pumps, water tanks, and other technical systems as well as the piping.


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 seal
Suitable for drinking water applications



The individual filtration stages:

1 x RLH 50mcr HYDRA BIG - Sediment Filter Polyester Mesh
Self-cleaning pre-filter cartridge – RLH: 50 MIC
filters sand and other particles larger than 50 microns
Lifespan: approx. 12-24 months (depending on water quality and flow rate)

1 x CB-EC CTO 10 BIG 10 mcr - Activated Carbon Block
filters chlorine, organic pollutants, light hydrocarbons, solvents, pesticides, oils and aromas, taste impairments, odor impairments, fine particles (rust, lime flakes, sand, scales) and suspended matter.
Lifespan: approx. 6 months (depending on water quality and flow rate)


The filter system is original packaged, with filter housing, a housing key, a wall mount, screws, and three filter cartridges.