Mitco 251-20am Fulflo FB6 Fuel Oil Filter Element Replacement Cartridge 10 Pack

Product Description

The Mitco 251-20am is a micro-flow fuel oil filter element designed as a direct replacement for the FulFlo FB6 oil filter housing. This cartridge-style filter element is used in residential and light commercial oil burner systems to remove contaminants from fuel oil before it reaches the burner nozzle. Clean fuel delivery is critical to efficient combustion, reliable ignition, and long service life for oil-fired heating equipment. Dirty or degraded filter elements lead to nozzle clogging, combustion inefficiency, and costly service calls. Replacing the filter element on a regular maintenance schedule keeps the fuel oil system running clean and reduces the risk of unexpected burner lockout. The 251-20am uses a micro-flow design that captures fine particulates, water droplets, and sludge that accumulate in fuel oil tanks over time, especially in systems that have been in service for multiple seasons. This filter element is compatible with the FulFlo FB6 housing, making it a reliable choice for HVAC service technicians and oil burner mechanics who work on forced hot air and hydronic heating systems. Each pack includes the replacement filter element and gaskets, giving technicians everything needed to complete a clean, leak-free service in one kit. The element measures approximately 6 inches in length, 3 inches in width, and 6 inches in height. This listing includes a package quantity of 10 elements, making it practical for HVAC contractors and supply houses to stock for routine annual tune-ups and preventive maintenance calls on oil heating systems. Stocking replacement elements in bulk reduces truck stock gaps and keeps service schedules on track through peak heating season.

• Micro-flow cartridge design captures fine particulates, sludge, and water from fuel oil
• Direct replacement for FulFlo FB6 oil filter housing — includes element and gaskets
• Packaged in quantities of 10 for contractor and shop stock efficiency

Product Highlights

The Mitco 251-20am provides a reliable, ready-to-install replacement solution for FulFlo FB6 oil filter systems, helping HVAC and oil burner technicians maintain clean fuel delivery and extend equipment service life. The 10-pack quantity supports high-volume maintenance operations and seasonal tune-up schedules.

Product Information

Standard Information

• Brand: MITCO
• Manufacturer Part Number: 251-20am

Technical Specifications

• Filter Type: Micro-Flow Cartridge
• For Use With: FulFlo FB6 Oil Filter Housing
• Includes: Replacement Element and Gaskets
• Length: 6 inches
• Width: 3 inches
• Height: 6 inches
• Package Quantity: 10
• Product Type: Fuel Oil Filter Element