Marineland Aquaria Sponge Reverse Flow Prefilt Posted on February 12, 2017 by One Boutique Package Description: 1 Unit Serving Size: .. Number of Servings: .. Unit Type: Each Reverse Flow Pre Filter Sponge for Penguin 660R. Replacement parts for the Marineland Penguin Powerhead. Discount Price: £7.72 Buy from Amazon Posts related to Marineland Aquaria Sponge Reverse Flow PrefiltMarineland - Aquaria - AMLPR10566 Filter Cover Penguin 350BMarineland MD90705 Penguin Power Filter by MarineLandMarineland Bio-Wheel Penguin 75 Power Filter, 10-GallonMarineland - Aquaria - AMLPRIM360 Impeller Assembly Pcml360Marineland Aquaria Bio Wheel Assy System tem 6Marineland (Aquaria) AMLPR1910B Bio Wheel Bearings Filter Parts for Aquarium by Marineland (Aquaria)