Pool sand filter with side manifol.With fully antimicrobial inner surface. Transparent bed inspection lid and Backwash.Operating pressure 1.5 bar// max 4.0 bar.Includes BWT multistage valve(3.5 bar) and connection accessories.The range starts from a diameter of D 450mm and ends with filters of a diameter of 900mm.Includes an inlet pressure indicator, air... Pool sand filter with side...