A feature supported by many e-mail clients and news readers that enables you to block out messages from specific individuals. The list of addresses that you want to block is called a bozo list or kill file. Bozo filters are one way to reduce flames and spam.
PetFoodDirect
31.79All Penguin BIO-Wheel Power Filters deliver simple, easy, 3-stage aquarium filtration...without the hassle of air pumps, valves, tubing or air stones....
National Pet Pharmacy
31.79All Penguin BIO-Wheel Power Filters deliver simple, easy, 3-stage aquarium filtration...without the hassle of air pumps, valves, tubing or air stones....
Fish.com
2.59Aquatic Edge Bio-Ceramic Filter for BPF-60
eBay
39.98For Aquarium up to 30 gallons Size 295mm x 115mm x 250mm or 11.6" x 4.5" x 9.8" Maximum output 750L Hr 198G Hr Wattage 7W Voltage AC 110V, Manufacture...
Amazon Marketplace
34.98Waterfall style aquarium filter agitates the surface while creating beneficial currents throughout the entire volume of the aquarium. The Surface agit...
