... .Specification: our normal size is D25mm; the magnetic flux can reach 12000GS. Specification: Our standard magnetic filter bars is 25mm.(1 inch) in diameter ... magnet ,alnico magnet,SmCo magnet, neodymium magnet ,rare earth magnet,magnetic separator,Super Fuel Saver,Magnetic Filter Bar,Magnetic Water Treatment,Magnetic Water Conditioner ,sintered NdFeB ...