12" X 12" Universal Aluminum Access Panel Door For Wall / Ceiling Application (Push-Lock) With Solid Frame - [Outer Dimensions: 13" Width X 13" Height] RV Mobile Home + Product Details 18"w X Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

+ Product Details 18"w X 18"h is the size for the drywall opening measurement only

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

actual front end outer dimensions are approximately 21" width X 21" height

Rigid Gauge Steel

+ Product Details Perfect Fit & Easy Sizing - Designed for a 34" x 34" duct opening (measured at the opening)

12" X 12" Universal Aluminum Access Panel Door For Wall Ceiling Application (Push Lock) With Solid Frame [Outer Dimensions: 13" Width X 13" Height] RV Mobile Home + Product Details 18"w X Compatible With Duct 7in Applications This sheet metal DDAG A 1212 + Product Details 18"w X 18"h is the size for the drywall opening measurement only Tamper Proof Design – Provides robust protection to prevent unauthorized access and ensure consistent thermostat settings