All JUWEL POWERHEADS/PUMPS JUWEL POWERHEADS/PUMPS Juwel 300 fits Rekord 600/700 This is the upgraded version from the bioflow 280 MF234£26.86 Juwel 500 EccoFlow (400 BioFlow) Pump Set fits Juwel Rekord 800 85553£34.11 Juwel Eccoflow 1000 Powerhead 85766£55.83 JUWEL Eccoflow 300 Rekord 600 700 & Primo 60 & 70 85751 (Upgrade)£26.86 Juwel Eccoflow 600 Powerhead 85764£39.16 Juwel Eccoflow Powerhead Pump 1500 85768£70.32