Superior F35A / Alco A3F Suction Line Filter Core

For veteran technicians and commercial contractors, the Superior F35A / Alco A3F Suction Line Filter Core is a critical component for system clean-up and protection. This core is engineered for refrigeration system contaminant removal, featuring a super-pleated filter media that provides approximately 115 square inches of surface area. This high suction line filtration area ensures a low pressure drop while trapping solid contaminants down to 10 microns. Designed specifically for use in 3CFA and BTAS-3 brass shells, the F35A/A3F excels in HVAC compressor protection by capturing wax, metallic debris, and carbon deposits that are common after a burnout or during routine maintenance on HCFC and HFC systems. Its robust construction includes a stainless steel helical wire spring to prevent cartridge collapse under heavy loading or high-pressure suction conditions, maintaining the liquid and suction line integrity of commercial refrigeration racks and industrial HVAC units.

• Maximum Filtration Surface: The pleated 115 sq. in. design offers significantly more filter area than standard blocks, extending the interval between core changes during system clean-up.
• Universal Compatibility: Direct cross-reference between Superior F35A and Alco A3F (Copeland 049480) ensures this core fits standard 3" OD suction line shells like the BTAS-3 and 3CFA.
• High-Strength Internal Support: Features a stainless steel helical spring to maintain structural integrity and prevent bypass during high-velocity gas flow.
• Precise Particulate Capture: Effectively filters solids down to 10 microns, preventing thermal expansion valve (TXV) plugging and protecting new compressor bearings from abrasive debris.

Which filter shells are compatible with this core?
This core is designed for 3-inch brass shells. It is a direct fit for Superior 3CFA shells and Alco/Emerson BTAS-3 shells. Always verify the shell series before installation to ensure a proper seal.

Is this core suitable for both liquid and suction lines?
While often utilized in suction line applications for compressor protection after a burnout, the F35A/A3F is physically compatible with various filter-drier shells. However, its high-surface-area pleated design is specifically optimized for capturing the solids frequently found in the suction line of refrigeration systems.

Does this core remove moisture and acid?
This specific model focuses on high-capacity particulate filtration. For systems requiring aggressive moisture or acid removal, a desiccant-based block (such as a 48-DU or 48-DA) should be considered, though this pleated core is the industry standard for removing solid debris that can cause mechanical failure.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.