Sedra Ksp 3500 Needle Wheel Protein Skimmer Pump. Fits ASM G1X -G2 Protein Skimmers. This is also a great reliable pump for DIY PROTEIN SKIMMERS. Venturi intake complete with air hose.The item "SEDRA KSP3500 Protein Skimmer Pump Fits ASM G-searies" is in sale since Wednesday, September 12, 2018. This item is in the category "Pet Supplies\Fish & Aquariums\Filters". The seller is "retek71" and is located in Alhambra, California. This item can be shipped worldwide.