14"W X 30"H [Duct Opening] ALUMINUM RETURN GRILLE - EASY AIR FLOW - LINEAR BAR GRILLES [OUTER DIMENSIONS: 15.875"W X 31.875"H] Return Grille Tamper-Proof Locking Mechanism – Includes Insulation Black Foam Tape Sheet Metal/Adjustable Elbow CRG1234

Tamper-Proof Locking Mechanism – Includes an eight-tumbler lock with a supplied key to prevent unauthorized access

Design – Heavier gauge than needed

+ Product Details Size – 6" x 28" or 28" x 6" is the size for the duct opening measurement only

this thermostat guard is the perfect solution for safeguarding your temperature controls

14"W X 30"H [Duct Opening] ALUMINUM RETURN GRILLE EASY AIR FLOW LINEAR BAR GRILLES [OUTER DIMENSIONS: 15.875"W X 31.875"H] Return Grille Tamper Proof Locking Mechanism – Includes Insulation Black Foam Tape Sheet Metal Adjustable Elbow CRG1234 Tamper Proof Locking Mechanism – Includes an eight tumbler lock with a supplied key to prevent unauthorized access Design – Heavier gauge than needed