The HYDRA RAINMASTER TRIO self-cleaning rainwater filters are three stage units filtering and harvesting rainwater.

They have an exclusive counter-current self-cleaning first stage with a stainless steel net cartridge and filtration degree of 90 micron; the second stage refines the filtration to 25 micron thanks to a wound wire cartridge; the third stage instead is the treatment using granulated activated carbon or carbon-block.
This way the unpleasant characteristics that rainwater takes on during its journey all the way to the accumulation tank are eliminated. The impurities collected by the first stage can be ejected manually, using the drain tap and funnel with anti-reflux system, or automatically, thanks to the specific Kit auto.
The three stage self-cleaning rainwater filters are available with 1/2", 3/4" ,1” IN/OUT connection and brass or plastic thread BSP or NPT.
In order to make the product more effective and complete, Atlas Filtri has made a rich series of accessories and spare parts available.


Rain-water filter for water recycling and treatment, with self-cleaning prefilter
Triple stage filter with single-block head
Pre-filtering cartridge (first and second stage): RAH + FA 10
Treatment cartridges: LA 10, CB-EC 10
IN/OUT female 1/2”, 3/4”, 1” connections
Brass and plastic thread BSP or NPT
Head: reinforced polypropylene
Bowl: PET
Drain valve for manual cleaning
Anti-pollution from reflux drain system
Prepared for Kit auto
Maximum operating temperature: 45°C (113° F)
Maximum operating pressure, BSP versions: 8 bar (116 psi)
Maximum operating pressure, NPT versions: 8,6 bar (125 psi)
Atoxic materials, suitable for potable water
3 stage treatment for excellent quality
Safer and more practical with single-block head
Easy, safe and fast cleaning
Wide range of accessories

Accessories on demand

3/4 plastic nipple with o-ring
3/4"-1" brass nipples with o-ring
-KIT AUTO- for S models – automatic discharge kit
UV 1200/2800
-LUBRIKIT- lubricant for housing o-ring

video gallery

Installation and use of multi-stage self-cleaning filters for rain water re-cycling