AstralPool - Aster Sand Filter Diffuser Assembly 700 mm - SP-04-0447

AstralPool – Aster sand filter diffuser assembly 700 mm

This genuine AstralPool diffuser assembly is the OEM internal water distribution component designed for the AstralPool Aster laminated sand filter with a 700 mm tank diameter. Positioned at the top of the filter vessel, it evenly spreads incoming pool water across the filter media bed to ensure consistent filtration performance. Manufactured from durable, chemically resistant PVC and polypropylene, it maintains full integrity under normal pool operating conditions.

Compatibility

This diffuser assembly is engineered specifically for the AstralPool Aster series sand filter in the 700 mm diameter configuration. The Aster range is a laminated polyester and fibreglass filter line designed for larger private and residential pools. Always verify your filter’s tank diameter before ordering, as diffuser assemblies are size-specific and not interchangeable between different tank diameters within the Aster range.

Why genuine matters

An OEM AstralPool diffuser assembly guarantees a precise dimensional fit and is made from the same UV- and chemical-resistant PVC and polypropylene materials used in original production. A correctly seated diffuser prevents channelling — where water bypasses the sand bed — ensuring your filter delivers its rated water clarity and flow rate. Aftermarket alternatives may vary in dimensions or material quality, risking leaks or reduced filtration efficiency.

Installation

The diffuser assembly is accessed by removing the filter lid. Ensure the filter is depressurised and isolated from the pump before opening. The assembly should seat securely onto the central standpipe inside the tank. It is advisable to inspect the lateral collector arms and any associated seals at the same time, replacing any worn components to restore full system performance.