HYDRA Rainmaster Duo RLH CB 3/4” - Well Water Filter Household Water Filter

HYDRA RAINMASTER DUO RLH CB 3/4” - Well Water Filter Household Water Filter

Double filter housing with one-piece head

This filtration system treats water in high concentration cost-effectively, reduces iron content, and filters contaminants as well as fine particles from the water.

Innovative backwash system with spring-mounted filter cartridge. When the flush valve is opened, the cartridge is pulled down by the pressure drop, thereby cleaning the inside as well. A minimum pressure of 1.8 bar is required to ensure backflushing.

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

This works through the self-cleaning/backwash pre-filter with 90 microns, a pre-filter with 25 microns, and a final water treatment CARBON cartridge.

The filter cleans the water to 10 microns.


Usage, Scope, Dimensions:

The 2-stage water treatment system is designed to be very space-saving and easy to install.

The HYDRA Rainmaster Duo water filter features a drainage funnel/backflow protection to safeguard the drinking water supply.

It is used for the filtration and treatment of drinking water, well water, household water, wastewater, and serves to protect fittings, boilers, pumps, water tanks, washing machines, and other technical systems as well as the pipelines.

Filter dimensions:
Height: 390 Width: 228 Depth: 107 mm

IN / OUT connection made of brass in 3/4" inch:
Maximum pressure: 8.0 bar
Minimal pressure: 1.8 bar
Maximum temperature: 45 °C


The individual filtration stages:

1 x RLH - Pre-filtration Cartridge (Art.-No. 8021647070418)
Self-cleaning pre-filtration cartridge RLH with plastic mesh 90 MIC, filters sand and other particles larger than 90 microns.
Lifespan: approx. 12-24 months


 1 x CB - CARBON Cartridge Activated Carbon 10 Micron (Art.-No. 4260303250106)

Filtration of fine particles (rust, lime, sand, flakes)
Reduction of chlorine (bad taste and odor)
Contaminants (pesticides, solvents, etc.)
Lifespan: 6 months (depending on water quality and flow rate)


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