General Filters 12 psi 3/8 In. NPT Fuel Oil Filter - Anderson Lumber
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GSParts #R Gar-Ber R Spin On Furnace Fuel Oil Filter Epoxy Coated Garber Cartridge - Walmart.com
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HVAC-Talk: Heating, Air & Refrigeration Discussion
Durst White Hydronic Baseboard Heater Oil Filter - Steam Compatible, Advanced Design, Easy Disassembly in the Hydronic Baseboard Heater Accessories department at Lowes.com
How to Replace a Filter on an Oil-Fired Boiler | HomeServe USA