Drop Ceiling HVAC Supply Grille - For T-Bar Lay-In - 2 Coned - 24" x 24" - For 8" Vent Connection - Black 18" Round Duct Pipe Perforated steel grille for return

Perforated steel grille for return air flow

+ Product Details Size – 16" x 34" or 34" x 16" is the size for the duct opening measurement only

Tamper-Proof Design – Provides robust protection to prevent unauthorized access and ensure consistent thermostat settings

+ Product Details Size - 10"w X 34"h X 2"d (for duct opening measurement only)

Drop Ceiling HVAC Supply Grille - For T-Bar Lay-In - 2 Coned - 24" x 24" - For 8" Vent Connection - Black 18" Round Duct Pipe Perforated steel grille for returnDrop Ceiling HVAC Supply Grille For T Bar Lay In 2 Coned 24" x 24" For 6" Vent Connection Black These are specially sized to fit into all drop ceilings, 24"x 24", also called T Bar systems. Can be hooked up with our "Butterfly Dampers" for precise airflow control Why HVAC Premium? You may think of grilles and registers as a generic component of the ventilation system in your house. But they are also the most visible representation of you air system.