General Filters Fuel Oil Filter Cartridge is the for oil-fired heating appliances in small to average-sized homes and commercial buildings. Designed for final filtration in central fuel oil distribution systems, this filter operates at a working pressure of 12 P.S.I. and features a 3/8" NPT connection. Its 10-micron wool felt cartridge with a center core bonded to prevent media migration ensures efficient filtration. The package includes three gaskets and the cartridge is UL listed for quality assurance. This cartridge fits filter model No. 2A-700A with a 25 GPH firing rate and may also be compatible with Unifilter model No. 99, Sid Harvey model No. XF-1/265, Autoflo model No. F-400, and Eddington model No. S-252. Additionally, it serves as a for filter model No. 1A-25A with a 10 GPH firing rate and fits several other models including Unifilter 77, Sears 8055, Sid Harvey XF-25/264, Autoflo F-300, Eddington S-254, and Federal A-77. The product is UL listed and rated for 12 psi pressure, making it a reliable and efficient filtration solution. Model Number: 2A-700A