nVent HOFFMAN PL17N21 PLENUM M17 AND N17 TO N21

When existing air conditioners are damaged or have reached end-of-life. No modification of the enclosure required - designed to match the enclosure cut-out and mounting holes of the air conditioner being replaced. Plenum design allows for optimum air flow (vs. a flat plate that can block the air intake and air outtake left by the older air conditioner). Gasket included.