HYDRA BIG TRIO Rainmaster 1” - 20 inch household water filter well water filter

HYDRA BIG TRIO Rainmaster 1” - 20 inch whole-house water filter

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

This filter system conditions water at high efficiency and cost-effectively and filters contaminants as well as fine particles from the water.

This is achieved by the self-cleaning/backwash prefilter with 90 micron, an FA prefilter with 25 micron and a final water treatment using the CB CARBON cartridge.

The CTO 20 BIG 10 mcr - activated carbon block consists of compressed activated carbon and filters contaminants from the water such as chlorine, organic contaminants, light hydrocarbons, solvents, pesticides, insecticides, oils and flavors, taste impairments, odor impairments, fine particles (rust, limescale flakes, sand, dander) and suspended solids.

The filter cleans the water down to 10 micron.



Usage, scope, dimensions:

The 3-stage water treatment system is designed to be very space-saving and easy to install.

The HYDRA TRIO whole-house filter includes a drain funnel/backflow protection to safeguard the drinking water supply.

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

Technical specifications

20" HYDRA BIG TRIO filter housing
Dimensions: 647 x 590 x 185 mm (HxWxD)
Operating pressure: maximum 8.3 bar
Temperature range: 4 - 45 °C
Fits all common 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 prefiltration cartridge – RLH: 90 MIC
filters sand and other particles larger than 90 micron
Lifespan: approx. 12-24 months (depending on water quality and flow rate)


1 x FA 20 Big SX 25 micron - sediment wound filter polypropylene

Wound filters are powerful sediment filters for removing sand, dust, rust and other particles. The particularly uniform winding of the polypropylene yarn during production results in a compact cartridge with a large effective filter surface.
Lifespan: approx. 6 months (depending on water quality and flow rate)

1 x CTO 20 BIG 10 mcr - activated carbon block
filters chlorine, organic contaminants, light hydrocarbons, solvents, pesticides, oils and flavors, taste impairments, odor impairments, fine particles (rust, limescale flakes, sand, dander) and suspended solids.
Lifespan: approx. 6 months (depending on water quality and flow rate)


The filter system is original packaged, including filter housing, a housing wrench, a wall bracket, screws and three filter cartridges.