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Brass Cover for Cage Units on Trane Traps
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We no longer carry 4321C
Unavailable since May 27, 2026
Description
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Brass cover for Barnes & Jones part number 4321 cage units. When replacing cage units in some makes of traps, a new cover may be required to ensure a proper fit of the cage unit in that model trap. In many cases the original cover can be used with the new replacement cage unit. Most covers do not require a cover gasket.
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