AstralPool - Aster High-Performance Filter Diffuser Assembly 2½" (AST-L 900) - 4404010317

AstralPool – Aster High-Performance Filter Diffuser Assembly 2½” (AST-L 900)

This is the genuine AstralPool diffuser assembly for the Aster-L 900 High-Performance sand filter, featuring a 2½” pipe connection. The diffuser sits at the top of the filter tank and evenly distributes incoming water from the pump across the sand or glass filter bed, which is essential for efficient, uniform filtration. It corresponds to position 15 in the official Fluidra exploded-view diagram for the Aster High-Performance Filter (parent SKU 10004).

Compatibility

This diffuser assembly is designed exclusively for the AstralPool Aster High-Performance Filter range (parent SKU 10004), specifically the AST-L 900 model with a 2½” inlet connection. Always cross-reference the exploded-view position (pos. 15) and your filter’s model number before ordering to ensure the correct part for your installation.

Why Genuine Matters

Using an original AstralPool spare part guarantees a perfect, modification-free fit with the rest of your filter system, preserving the rated 2.5 bar working pressure and maximum filtration speed of 50 m³/h/m². Non-genuine alternatives can compromise seal integrity, reduce filtration efficiency, and may void your filter warranty. The assembly is manufactured from durable, salt-water-resistant materials built to AstralPool’s quality standards.

Installation

The diffuser assembly mounts internally at the top of the filter vessel and should be fitted before loading filter media (sand or glass). Always isolate the pump and depressurise the filter before beginning any service work. If you are not confident working on pressurised pool filtration equipment, we recommend having this part installed by a qualified pool technician.