FRIEDRICH Wall Plenum for Use with Vertical Package Air Conditioners

Two-part sleeve that telescopes in and out and sits inside the exterior wall penetration for use with FRIEDRICH vertical package air conditioners (VPAK). This is a required accessory for installation of FRIEDRICH's VPAK. Wall Plenum telescopes for flexibility in its installation.|Required accessory for FRIEDRICH vertical package air conditioners|2-part sleeve|Wall plenum telescopes from 5.5 in. to 8 in.|VPAK accessory