AquaStar Backwash valve automatic EasyII SM20 AO 2" ABS black thread ends R 2" BSP, MOP 3,5 bar NBR tpe 100-240 VAC. For fully automatic and cost-effective backwashing of filtration systems. The backwash and filter processes are triggered via the integrated timer positions. In the version with additional pressure switch the triggering can be time- and/or pressure-controlled.
