SunSun Aquarium Außenfilter HW-304/404B. Spare parts for our SunSun Aquarium external filter HW-304/404B. Spare Part for HW-304, HW-404B. Ersatzteile - Auslass. Swimming Pool Technology. It is composed of outlet-elbow tube, 3 x 90° angle, multi-piece spray bar with end cap, 3 x suction holder (long & short distance piece).
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