1. Safety Information
Please read all instructions carefully before installation and use. Failure to follow these instructions may result in injury or product damage.
- Always wear appropriate safety gear, including safety glasses and gloves, during installation.
- Tempered glass is strong but can shatter if struck at the edges or corners. Handle glass panels with extreme care.
- It is highly recommended to have at least two people for installation due to the weight and size of the glass panels.
- Ensure the installation surface (walls, floor) is structurally sound and level before beginning.
- Use only the provided hardware or manufacturer-approved replacements.
- Do not overtighten screws, as this can damage components or glass.
2. Setup and Installation
This section provides detailed steps for installing your Sunrosa Frameless Sliding Shower Door. Professional installation is recommended.
2.1 Pre-Installation Checks
- Verify Dimensions: Measure your shower opening to ensure it falls within the specified range of 44"-48" W x 76" H.
- Unpack Components: Carefully unbox all parts and check against the packing list. Report any missing or damaged parts immediately.
- Required Tools: You will need standard tools such as a drill, level, measuring tape, screwdriver set, and a caulk gun. Based on user feedback, a 3/8" tile drill bit for the main rail assembly and a 5/16" bit for the cleat on the curb may be necessary.
2.2 Installation Steps
Refer to the official installation video for a visual guide. The following steps outline the general process:
Official installation video for Sunrosa Shower Doors. This video provides a visual guide to the assembly process.
- Measure and Mark: Accurately measure and mark the positions for the wall profiles and guide rail on your shower walls and curb. Ensure all markings are level.
- Install Wall Profiles: Secure the wall profiles to the marked positions using appropriate fasteners for your wall type.
- Install Guide Rail: Attach the upper guide rail to the wall profiles. Ensure it is perfectly level to allow for smooth door operation.
- Position Fixed Panel: Carefully place the fixed glass panel into the wall profile and secure it. Use plastic spacers in the bottom channel as needed to ensure proper alignment and support.
- Attach Side Seal Strip: Mount the side seal strip to the side edge of the fixed panel. Cut a 20.5 mm square notch into the water barrier edge located at the bottom (shower interior side) of the side seal strip.
- Install Sliding Door Rollers: Attach the rollers to the top edge of the sliding glass door.
- Hang Sliding Door: Carefully lift and hang the sliding door onto the guide rail. Adjust the rollers to ensure the door slides smoothly and is level.
- Install Door Handle: Attach the handle to the sliding glass door.
- Apply Sealant: Apply a high-quality silicone sealant along the exterior joints of the shower door and wall profiles to ensure water tightness. Allow adequate drying time before use.
2.3 Reversible Installation
This shower door is designed for reversible installation, allowing for either a right or left door opening to best fit your bathroom layout.

This diagram illustrates how the shower door can be configured for either a left-hand or right-hand opening, providing flexibility for various bathroom layouts.
2.4 Product Dimensions
The following diagram provides detailed dimensions for the shower door. Please ensure your shower space accommodates these measurements.

Detailed dimensions for the shower door, including minimum/maximum width (A: 44"-48" / 1119-1219mm), height (B: 76" / 1930mm), and opening width (D: 15 4/8"-19 4/8" / 395-495mm). Note: C indicates the height from the bottom of the top track to the floor (72" / 1828mm).
3. Operation
Operating your Sunrosa sliding shower door is straightforward. The door is designed for smooth and quiet movement.
- Opening and Closing: Gently grasp the handle and slide the door along the top guide rail. Avoid forcing the door.
- Roller System: The door utilizes a precision roller system for effortless gliding. Ensure the rollers remain free of debris.

A close-up view of the brushed gold roller system, highlighting the smooth operation mechanism of the sliding shower door.
4. Maintenance and Care
Regular cleaning and maintenance will ensure the longevity and appearance of your shower door.
4.1 Glass Cleaning
The 5/16" (8 mm) clear SGCC tempered glass features a generous nano-coating for easier cleaning and stain resistance.
- Daily Care: After each use, wipe down the glass with a soft cloth or squeegee to prevent water spots and soap scum buildup.
- Regular Cleaning: Use a mild, non-abrasive glass cleaner and a soft cloth or sponge. Avoid harsh chemicals, abrasive pads, or scouring powders, as these can damage the nano-coating and glass surface.
- Nano Coating Benefit: The nano-coating helps water bead up and run off, reducing the adherence of stains and making cleaning simpler.

A close-up view of the 5/16 inch (8mm) clear tempered glass, demonstrating its clarity and how water beads on its surface.

This image compares a standard glass surface affected by stains with a nano-coated glass surface that is not affected, illustrating the stain-resistant properties of the generous nano coating.
4.2 Hardware and Frame Care
The frame and handle are made from high-quality stainless steel with a brushed gold finish.
- Cleaning: Wipe down metal components with a soft, damp cloth. For stubborn spots, use a mild, non-abrasive cleaner specifically designed for brushed metal finishes.
- Avoid: Do not use abrasive cleaners, steel wool, or harsh chemicals, as these can scratch or damage the brushed gold finish.
- Water Containment: The full-length glass seal strip effectively keeps bathwater inside the enclosure. Regularly check the seal strip for wear and tear and clean it to prevent mold or mildew buildup.

A close-up view of the bottom water containment seal strip, designed to prevent water from escaping the shower enclosure and keep the bathroom floor dry.
5. Troubleshooting
This section addresses common issues you might encounter with your shower door.
| Problem | Possible Cause | Solution |
|---|---|---|
| Door does not slide smoothly. | Debris in track, misaligned rollers, or uneven installation. | Clean the guide rail and rollers. Check roller alignment and adjust if necessary. Verify the guide rail is level. |
| Water leakage from the bottom or sides. | Damaged or improperly installed seal strip, insufficient sealant. | Inspect the seal strip for damage and ensure it is correctly installed. Reapply silicone sealant to exterior joints if needed. |
| Door does not close completely. | Obstruction in the track, misaligned door. | Check the track for any obstructions. Adjust door alignment on the rollers. |
If you encounter issues not listed here or require further assistance, please contact customer support.
6. Specifications
| Feature | Detail |
|---|---|
| Brand | Sunrosa |
| Model Number | NKI6121-4876G |
| Dimensions (W x H) | 44"-48" (1119-1219 mm) x 76" (1930 mm) |
| Walk-in Opening | 15 4/8"-19 4/8" (395-495 mm) |
| Glass Thickness | 5/16" (8 mm) |
| Glass Type | Clear SGCC Tempered Glass with Nano Coating |
| Frame & Handle Material | High-quality Stainless Steel |
| Finish | Brushed Gold |
| Item Weight | 125.7 Pounds |
| Assembly Required | Yes |
7. Warranty & Support
Sunrosa is committed to providing high-quality products. For specific warranty details, please refer to the documentation included with your purchase or contact Sunrosa customer support directly.
7.1 Customer Support Process
If you encounter any issues with your product, please follow these steps to resolve them:

This diagram outlines the three-step process for resolving product issues: 1. Contact the Seller (Navigate to 'Your Orders', Click 'Problem with order', Select 'Contact seller'). 2. Describe the Issue in Detail (Attach images and provide a detailed description). 3. Resolve the Issue (Receive a solution such as replacement parts or other appropriate resolutions).
- Contact the Seller: Navigate to your order history, click on 'Problem with order', and then select 'Contact seller'.
- Describe the Issue in Detail: Attach images showing the product issue in the message chat and provide a detailed description of the problem.
- Resolve the Issue: Sunrosa will provide you with a solution, such as a complimentary replacement of damaged or missing parts or other appropriate resolutions.
If the installation instructions were unclear, we apologize for any inconvenience. Please contact us, and we will provide a clear version and professional installation support.







