Hydra  is a full range of self-cleaning filters with innovative solutions for the efficiency of self-cleaning operation, thanks to a newly designed back-wash system in counter-current which grants the highest particle removal from the filter cartridge. The cleaning operation with back-wash is simply operated by the opening of the discharge valve at the filter bottom, the resulting pressure-drop pushes the specially designed cartridge downward the housing bottom and reverses the water flow from the outer to the inner side of the cartridge, washing away the sediments trapped onto the outer surface of the cartridge. Sediments are then discharged from the bottom valve, which is provided with a drain funnel designed to prevent contamination by back-flow.

Hydra self-cleaning filters are available in 3 main versions :

• Hydra - manually operated self-cleaning filters, also available as Hydra M models with 2 manometers.
• Hydra K - manually operated self-cleaning filters with brass head, also available as Hydra K M models with 2 manometers.
• Hydra Hot - manually operated self-cleaning filters applicable for hot water filtration.

Hydra and Hydra K are available in 3 models with exclusive filter cartridges : 

• RAH models with stainless steel net cartridge, filtration at 90 micron.
• RLH models with plastic net cartridge, filtration at 90 micron.
• RSH models with pleated plastic net cartridge, filtration at 50 micron. Hydra cartridges are provided with brand new grey flat gaskets with antimicrobial protection, performed by silver based antimicrobial agent included in the gasket plastic matrix.
• Hydra and Hydra K can be used with Kit Auto and work as a fully automatic self-cleaning filter with back-wash. Hydra are available with female IN/Out configurations at 1/2, 3/4 and 1, with BSP or NPT threads, with or without brass inserts, and with male IN/Out configurations at 1/2, 3/4 and 1 with BSP threads .

Hydra  is a full range of self-cleaning filters with innovative solutions for the efficiency of self-cleaning operation, thanks to a newly designed back-wash system in counter-current which grants the highest particle removal from the filter cartridge. The cleaning operation with back-wash is simply operated by the opening of the discharge valve at the filter bottom, the resulting pressure-drop pushes the specially designed cartridge downward the housing bottom and reverses the water flow from the outer to the inner side of the cartridge, washing away the sediments trapped onto the outer surface of the cartridge. Sediments are then discharged from the bottom valve, which is provided with a drain funnel designed to prevent contamination by back-flow.

Hydra self-cleaning filters are available in 3 main versions :

• Hydra - manually operated self-cleaning filters, also available as Hydra M models with 2 manometers.
• Hydra K - manually operated self-cleaning filters with brass head, also available as Hydra K M models with 2 manometers.
• Hydra Hot - manually operated self-cleaning filters applicable for hot water filtration.

Hydra and Hydra K are available in 3 models with exclusive filter cartridges : 

• RAH models with stainless steel net cartridge, filtration at 90 micron.
• RLH models with plastic net cartridge, filtration at 90 micron.
• RSH models with pleated plastic net cartridge, filtration at 50 micron. Hydra cartridges are provided with brand new grey flat gaskets with antimicrobial protection, performed by silver based antimicrobial agent included in the gasket plastic matrix.
• Hydra and Hydra K can be used with Kit Auto and work as a fully automatic self-cleaning filter with back-wash. Hydra are available with female IN/Out configurations at 1/2, 3/4 and 1, with BSP or NPT threads, with or without brass inserts, and with male IN/Out configurations at 1/2, 3/4 and 1 with BSP threads .