The VIENNA filter series comprises laminated polyester filter tanks for private pools – available as a side-mount or top-mount version, individually or as a fully pre-assembled compact filter system with pump. Every VIENNA filter is delivered ex works with an original Praher 6-way backwash valve (1½” or 2″) and a pressure gauge; the filter tank is made of reinforced, UV-resistant fibreglass and is designed for a maximum operating pressure of 2 bar.
VIENNA 1 – Side Mount
On the Polyester Filter VIENNA 1, the backwash valve sits on the side of the tank. The transparent lid (d205 mm) allows a view into the filter interior and is easy to open; a swivelling filter arm makes filling with filter media easier, and venting is integrated. The tank comes in RAL5005 blue, and the tightness of the filter housing is covered by a 3-year warranty. Four sizes cover d500 to d900 (filter area 0.19–0.64 m², flow rate 10–32 m³/h).
VIENNA 2 – Top Mount
On the VIENNA 2 polyester filter, the Praher valve sits on top of the tank – the compact design for tight plant rooms. Features include a filter opening d175 mm, a drain set and integrated venting; the tank in RAL5015 blue carries a 2-year warranty on housing tightness. Five sizes from d400 to d900 are available.
Compact filter systems – plug-ready on a pallet
If you prefer not to do the pipework yourself, choose the pre-assembled system: the VIENNA 1 compact filter system (side mount) combines the filter with a self-priming Ocean series O filter pump (d500: O50 with 0.57 kW, d600: O75 with 0.80 kW), a solvent-cemented valve piping set and three Ocean unions on a PE filter pallet. The VIENNA 2 compact filter system (top mount) is fully piped and plug-ready with a Smart series M filter pump (M33 with 8 m³/h, M50 with 10 m³/h or M75 with 12.5 m³/h, 230 V).
Related knowledge from the guide section
Which filter media belongs in the tank is clarified by the guide Sand or Glass Filter Media?; the right pump size is covered in Sizing a Pool Pump Correctly. And if backwashing is to run automatically: all VIENNA filters work with the original Praher 6-way valve – so the groundwork for retrofitting an Aquastar controller is already in place.