Fluidra - Collector Arm Assembly Ø650 mm for PTK 1200 Sand Filter

Fluidra – Collector Arm Assembly Ø650 mm for PTK 1200 Sand Filter

This genuine Fluidra collector arm assembly is the complete internal underdrain unit for the PTK 1200 mm bed-depth sand filter in the Ø650 mm tank diameter configuration. Fitted at the base of the filter vessel, the assembly collects filtered water uniformly across the sand bed and channels it to the outlet, while retaining the filter media. It is an exact OEM replacement that restores full hydraulic performance when the original assembly is damaged or worn.

Compatibility

This collector assembly is designed exclusively for the Fluidra PTK series arm-type sand filters with a 1,200 mm filter bed depth and a tank diameter of Ø650 mm. The PTK 1200 range is a polyester and fibreglass laminated commercial filter used widely in public and large residential pools across Europe. Always verify your filter’s tank diameter before ordering, as collector assemblies are not interchangeable between different tank sizes.

Design & Function

The assembly consists of a central manifold hub and a set of laterals featuring precision 0.3 mm slots, uniformly distributed around the base of the filter to ensure even flow distribution and correct water circulation through the sand bed. The polypropylene (PP) construction offers excellent chemical and corrosion resistance, making it well suited for continuous operation in chlorinated and salt-treated pool water environments.

Why Genuine Matters

Using a genuine Fluidra spare part guarantees dimensional accuracy and slot tolerances that match the original specification, preventing sand bypass into the return lines and maintaining filtration efficiency. Non-OEM laterals with imprecise slot widths can allow filter media to pass through or create uneven flow, compromising water quality. Fitting a genuine part also preserves any applicable warranty on the filter vessel itself.