AquaClear 110 Activated Carbon Filter Insert improves water clarity in fresh and saltwater aquariums, for the AquaClear 110 Power Filter, it provides superior adsorption which eliminate odors, discoloration/impuri
Cube, Individual cubes for density experiments, Available in eight different materials: acrylic, aluminum, brass, copper, nylon, polypropylene, PVC, and steel, Each material is represented by a 1/2inch, 1inch and 11/2inch cube