Fluidra - Diffuser Assembly for ARM PTK Sand Filter Ø1200 mm

Fluidra – Diffuser Assembly for ARM PTK Sand Filter Ø1200 mm

This is the genuine Fluidra replacement diffuser assembly designed for the ARM Filters PTK 1200 series sand filter with a 1200 mm tank diameter. The diffuser assembly sits at the top of the filter tank and is responsible for evenly distributing incoming pool water across the entire surface of the filter media, ensuring thorough and consistent filtration. It also plays a key role during backwash cycles by channelling the return flow efficiently.

Compatibility

This diffuser assembly is specifically engineered for the Fluidra ARM PTK 1200 series filter with a Ø1200 mm tank. The PTK 1200 is a large-capacity, fibre-glass laminated commercial sand filter widely used in public and semi-commercial pool installations. Always verify your filter’s model number and tank diameter before ordering, as diffuser assemblies are size-specific and not interchangeable across different tank diameters.

Why Genuine Matters

Using an authentic Fluidra spare part guarantees a precise dimensional fit, full pressure rating compatibility, and the material quality required for continuous operation in commercial pool environments. Third-party alternatives may compromise the even water distribution across the filter bed, leading to channelling, reduced filtration efficiency, and potential pressure imbalances during backwash. A genuine part also preserves any existing warranty on the filter unit.

Installation

Replacement of the diffuser assembly typically requires draining and opening the filter tank. The part locates centrally within the upper section of the vessel and connects to the inlet pipework. Due to the size and weight of a Ø1200 mm commercial filter, installation is best carried out by a qualified pool technician. Ensure all seals and O-rings are inspected and replaced as necessary when fitting this assembly.