Swimming pool sand filter
520, 640, 760
Pahlen
• Drain plug - for draining of water, for instance when emptying the pool for the winter.
• 6-way valve made of bronze - Simple cleaning and backwashing of the filter.
• 6-way valve made of ABS - High quality, sturdy construction, simple cleaning and backwashing of the filter.
• Pressure gauge - shows the need of backwashing.
• Sight glass - shows when the water is clean after backwashing.








