Fluidra - Impeller for AstralPool Sena SS Pump 0.33 HP 50 Hz (Pre-May 2024) - 4405010413

Fluidra – Impeller for AstralPool Sena SS Pump 0.33 HP 50 Hz (Pre-May 2024)

This is the genuine Fluidra replacement impeller for the AstralPool Sena SS self-priming pool pump in the 0.33 HP, 50 Hz single-phase configuration. The impeller is the rotating hydraulic component at the heart of the pump, responsible for drawing water from the pool and propelling it through the filtration system. Please note this part is designed for Sena SS units manufactured before May 2024 — verify your pump’s production date before ordering.

Compatibility

This impeller is a direct fit for the AstralPool Sena SS 0.33 HP 50 Hz single-phase pump (parent assembly: PUMP SENA SS 0.33HP 50HZ II) produced before May 2024. The Sena SS is a compact, self-priming pump used in domestic and light-commercial swimming pools across Europe. It is not compatible with higher-power variants (0.5 HP, 0.75 HP, 1 HP, 1.25 HP) or with Sena SS units manufactured from May 2024 onwards, which use a revised impeller design.

Why Genuine Matters

An impeller that is incorrectly sized or poorly balanced will reduce flow rate, increase energy consumption, and accelerate wear on the mechanical seal and bearings. This genuine Fluidra part is precision-matched to the Sena SS pump hydraulics, ensuring the correct flow rate at the rated 6 m head, quiet operation, and a long service life. Using an aftermarket substitute risks voiding any remaining warranty on your pump.

Installation

Replacing the impeller requires draining and disassembling the pump wet end, removing the existing impeller from the motor shaft (left-hand thread — anti-clockwise to tighten), and fitting the new impeller to the correct torque. While a competent DIYer can undertake this task, professional installation by a qualified pool technician is recommended to ensure the mechanical seal is correctly seated and the pump is re-commissioned safely.