Introduction
This manual provides detailed instructions for the assembly, installation, operation, and maintenance of your Keonjinn Medicine Cabinet Mirror. Please read all instructions carefully before beginning to ensure safe and proper use of the product.
Safety Information
- Always wear appropriate safety gear, such as gloves and eye protection, during assembly and installation.
- Ensure the mounting surface is structurally sound and capable of supporting the weight of the cabinet and its contents.
- Keep small parts and packaging materials away from children to prevent choking hazards.
- Handle glass components with care to avoid breakage and injury.
- If you are unsure about any step, consult a qualified professional.
Package Contents
Verify that all components are present and undamaged before proceeding with assembly.
- Medicine Cabinet Frame (Aluminum)
- Mirrored Door (Tempered Glass)
- Adjustable Shelves (Quantity varies by model, 4 for 30x26 In model)
- DTC Hinges with Silicone Buffers
- Mounting Hardware (Screws, anchors, etc.)
- Instruction Manual

Setup and Installation
The Keonjinn Medicine Cabinet Mirror offers flexible installation options: surface mount or recessed. Please choose the method that best suits your space and wall type.
1. Cabinet Assembly
Follow the steps below to assemble the cabinet frame before mounting.
- Attach the hinges (F) to the side panels (A1/A2) using screw 2.
- Connect the top and bottom panels (B) to the side panels (A1/A2), ensuring the lips are aligned. Use screw 1 to secure.
- Insert and slide the backboard (C) into the designated slot of the side panels (B).
- Loosen the screws and insert the D parts (shelf supports) into the slots.
- Insert the shelves (G) into the supports. Level and screw to fix the shelves in a proper position.
- Fasten the hinges (J) onto the cabinet door (H) using screw 2.

2. Mounting Options
This cabinet supports both surface mount and recessed installation.
Recessed Installation
For recessed mounting, ensure your wall is suitable and follow these steps:
- Identify the desired location, ensuring at least 3 inches of clearance above the faucet.
- Mark the placement of the cabinet and carefully cut out the wall opening according to the specified cutout dimensions (refer to the table below).
- Insert the assembled cabinet into the wall opening.
- Mark the hole positions for securing the cabinet within the recess.
- Drill pilot holes and use appropriate anchors (e.g., screw 8) to fix the cabinet securely.
- Apply stickers (12) to cover the screwheads for a clean finish.
Important: The cutout dimensions for the 30x26 In model are approximately 29.57 inches (width) x 25.63 inches (height) with a minimum depth of 3.58 inches.
Surface Mount Installation
For surface mounting, secure the cabinet directly to the wall using appropriate hardware for your wall type.
- Mark the desired mounting points on the wall.
- Drill pilot holes and insert wall anchors if necessary.
- Align the cabinet with the drilled holes and secure it to the wall using the provided screws (e.g., screw 4).
- Apply stickers (12) to cover the screwheads for a clean finish.
3. Door Attachment and Adjustment
- Press the hinge into place to link the door and cabinet.
- Adjust the door overlay depth by turning the outer screw on the hinge.
- Adjust the gap between the door and cabinet by turning the inner screw on the hinge.
- To move the door up or down, turn the upper and lower screws on the hinge to release, adjust, and then re-tighten.
- Screw to fix the hinge position once adjustments are complete.
Installation Videos
For visual guidance, please refer to the official installation videos:
Video: Keonjinn Medicine Cabinet Installation Video - Recessed. This video demonstrates the steps for recessed installation of the medicine cabinet.
Video: Keonjinn Beveled Framed Medicine Cabinet Mirror. This video provides an overview of the cabinet's features and installation.
Operating Instructions
Adjustable Shelves
The cabinet features stepless adjustable shelves, allowing you to customize the internal storage space to fit items of various heights. To adjust a shelf:
- Carefully remove any items from the shelf.
- Loosen the screws on the shelf supports (D parts) that hold the shelf in place.
- Slide the shelf supports to the desired height.
- Ensure the shelf is level and then tighten the screws to secure the supports and shelf.

Soft-Close Doors
The cabinet doors are equipped with DTC hinges and silicone buffers, providing a smooth and silent soft-closing mechanism. This prevents slamming and reduces wear and tear.
Reversible Door Installation
The cabinet door can be installed to open from either the left or right side, depending on your preference and bathroom layout. This flexibility should be considered during the initial assembly phase.

Maintenance
Cleaning
- For the mirror surface, use a soft, lint-free cloth and a non-abrasive glass cleaner. Spray cleaner onto the cloth, not directly onto the mirror, to prevent liquid from seeping into the edges.
- For the aluminum frame and interior, wipe with a soft, damp cloth. Avoid harsh chemicals or abrasive cleaners that could damage the finish.
- Regularly clean the hinges to ensure smooth operation.
Material Durability
The cabinet is constructed from lightweight and durable aluminum, which is 65% lighter than traditional wood and more resistant to moisture, warping, and rust. The mirror is made from 3.2MM tempered glass for clear reflection and shatter resistance.

Troubleshooting
- Door not closing smoothly: Check the DTC hinges for any obstructions. Adjust the hinge screws as described in the "Door Attachment and Adjustment" section to ensure proper alignment and soft-closing function.
- Mirror appears distorted or unclear: Ensure the protective film has been completely removed from the mirror surface. Clean the mirror with a suitable glass cleaner and a soft cloth.
- Cabinet feels unstable after surface mounting: Verify that the wall anchors used are appropriate for your wall type and that all screws are securely tightened. For drywall, consider using heavy-duty anchors if the included ones feel insufficient.
- Shelves are not level: Loosen the shelf support screws, adjust the shelf to the desired level, and re-tighten the screws firmly.
Specifications
| Feature | Detail |
|---|---|
| Brand | Keonjinn |
| Model | 30x26 In |
| Color | Black |
| Material | Aluminum |
| Product Dimensions (D x W x H) | 6.69"D x 18.11"W x 29.92"H (Package dimensions; actual cabinet dimensions are approximately 29.96"W x 26.14"H) |
| Special Features | Adjustable Shelf, Recessed or Surface Wall Mounted, Rust Resistant, Beveled Frame |
| Mounting Type | Wall Mount (Surface or Recessed) |
| Door Style | Swing Door |
| Required Assembly | Yes |
Cutout Dimensions for Recessed Installation (30x26 In Model)
| Dimension | Value (inches) |
|---|---|
| Height | 25.63 |
| Width | 29.57 |
| Depth (Minimum) | 3.58 |

Warranty and Support
- Warranty: The product comes with a 2-year warranty.
- Free Repair: Free mirror repair is available within 3 years of purchase.
- Returnless and Free Replacement: For products arriving in damaged condition, send photos of the damaged mirror for a free replacement without returning the original.
- 30-Day No-Hassle Returns: Eligible for return, refund, or free replacement within 30 days of receipt.
- Customer Support: Keonjinn offers 7x24 hours online support.
How to Contact Support
If you need support regarding Keonjinn products or orders, follow these steps:
- Locate the product on the platform where it was purchased (e.g., Amazon).
- Click on the "Keonjinn" brand name or seller name.
- Select "Ask a question" to access the Seller Messaging Assistant.
- Follow the prompts to type your question and submit it. Include product name, order number, and any relevant details.
