SAND FILTER MADE OF POLYETHYLENE Filter sand Specially made filter sand, washed and screened. Between pump and filter, for filter type 405, 505, 605. Including couplings. 516401 PVC connecting pipe 0 50 mm with %" thermostat connection. 516402 PVC connecting pipe 0 50 mm with 90° angle. 516405 Connecting hose, flexible PVC 0 50 mm. Precision thermostat with graded scale for temperature adjustement. Equipped with 160 mm probe. Item no. Temperature range Sand filter 405, item no. 212020 Polyethylene - For optimum quality and service life. Drain plug - For draining of water, for instance when emptying the pool for the winter. 6-way valve made of ABS - For simple cleaning and backwashing of the filter. Pressure gauge - Shows the need of backwashing. Sight glass - Shows when the water is clean after backwashing. ' Note! Recommendation for private pools. Technical data Item no. Type Suitable * Suitable Filter area Net weight Sand Total weight kg Dimensions pump kW water volume m3 m2 kg kg sand + water H (mm) 0 Central valve