Adjustable terminal basket with light weight, horizontal diffuser grille

A modular floor terminal that controls flow of conditioned air from an air plenum below a floor to an occupied space above the floor comprising:

• a. an adjustable terminal basket supported by the floor and extending into the air plenum below the floor and having:
• i. an outer basket portion, an inner basket portion rotatable relative to the outer basket portion and the outer basket portion having an inlet and outer peripheral wall respectively, wherein the rotation of the inner basket portion relative to the outer basket portion provides an adjustable air inlet;
• b. a horizontal diffuser grille mounted on the top of the basket over the air outlet comprising:
• i. a top plate having a center;
• ii. a bottom plate spaced apart from the top plate;
• iii. a series of pillars between the top plate and the bottom plate for supporting the top plate and bottom plate in a spaced apart relationship;
• and
• iv. angled slots extending between the top plate and the bottom plate through the hollow pillars.