

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The SUPCO s211 is a copper refrigeration strainer designed specifically for reopened systems following compressor burnout. It filters large quantities of foreign matter, including carbon deposits and acid residue, from the refrigerant circuit before they can contaminate downstream components such as the expansion valve or new compressor. The oversized internal screen area gives this strainer greater dirt-holding capacity than a standard liquid-line drier core, making it the appropriate choice when a system has experienced a burnout event. HVAC and refrigeration technicians install this strainer as part of the system cleanup procedure on reopened circuits.
The s211 is suited for residential and light-commercial refrigeration and air conditioning systems that have been opened for compressor replacement or burnout cleanup. The 0.25 inch inlet and 0.125 inch CAP outlet sizing fits small-diameter copper tubing common in fractional and light-commercial refrigerant circuits. With an overall length of 2.75 inches and an outer diameter of 0.75 inches, it fits in tight equipment compartments without modification. It is typically installed in the suction or liquid line during the initial recommissioning phase of a burnt-out system.
Designed as an OEM-style replacement strainer for small-bore residential and light-commercial refrigeration systems undergoing burnout cleanup and recommissioning.
A licensed HVAC or refrigeration technician should perform this installation. Recover all refrigerant and confirm the system is fully depressurized before cutting into any refrigerant line. Connections are made by brazing or sweating; use nitrogen purge during the brazing process to prevent internal oxidation. Replace the strainer once the system has been run through its initial cleanup cycle, as the screen will be loaded with burnout debris.
Thanks for subscribing!
This email has been registered!