Fluidra - Diffuser Assembly for D.700 Sand Filter (Ø700 mm, 21,000 l/h)

Fluidra – Diffuser Assembly for D.700 Sand Filter (Ø700 mm, 21,000 l/h)

This is the genuine Fluidra replacement diffuser assembly designed for the D.700 series sand filter — a large-capacity commercial or semi-commercial unit with a 700 mm tank diameter, a flow rate of 21,000 l/h, and a 2″ bayonet valve connection. The diffuser assembly sits at the top of the filter tank and is responsible for evenly distributing incoming pool water across the filter bed, ensuring consistent filtration performance throughout the sand media.

How It Works

As pool water enters the filter through the top inlet, the diffuser spreads the flow across the full cross-section of the sand bed rather than allowing it to channel through one spot. This even distribution maximises contact between the water and the filter media, improving particle capture and preventing premature wear of the sand bed. During backwashing, the diffuser also plays a role in collecting and directing the dislodged debris out of the tank efficiently.

Compatibility

This diffuser assembly is a direct OEM replacement part for the Fluidra D.700 sand filter (Ø700 mm tank, 21,000 l/h flow rate, 2″ bayonet valve). Always verify your filter’s model reference and tank diameter before ordering, as diffuser assemblies are model-specific and will not interchange between different tank sizes in the Fluidra D-series range.

Why Genuine Matters

A correctly sized, genuine Fluidra diffuser assembly ensures a precise fit within the filter tank, maintaining the seal and flow characteristics the filter was engineered for. Aftermarket or incorrectly sized diffusers can cause bypass flow, uneven filtration, and accelerated sand bed degradation — compromising water quality and increasing running costs. Ordering genuine Fluidra parts guarantees full compatibility and preserves any applicable product warranty.