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Pure spa Impeller fits Intex SB20 and SSP 20 models : Amazon.co.uk: Garden
Mutiny 2.1 Carbon Postfilter Upgrade – Avast Marine Works
Amazon.com: Submersible Pump Rotor Impeller with Shaft and Bearing, Replacement Stainless Steel Rod and Impeller for 400GPH Pump, 15mm Replacement Magnetic Filter