Introduction
This manual provides essential information for the proper installation, operation, and maintenance of your new HOROW 48" x 32" Left Drain Single Threshold Shower Base. Please read these instructions thoroughly before beginning installation or use to ensure safety and optimal performance of the product. Keep this manual for future reference.
Product Features
- Spacious Design: Measures 48" x 32" with a low 2.5" step-in height, suitable for various bathroom layouts. Includes a removable matte black drain cover for a clean aesthetic.
- Efficient Drainage: Engineered with a precise 2-4‰ slope to ensure rapid and complete water drainage, preventing standing water.
- Enhanced Safety: Features a low-profile entry to minimize tripping hazards and a textured, non-slip floor surface for secure footing.
- Durable Construction: Constructed from high-quality acrylic and fiberglass, reinforced with a built-in PVC frame. This design resists impact, cracking, yellowing, and fading.
- Leak-Proof Installation: Integrated 3-side waterproof flange ensures a secure, leak-proof seal when installed with tile or wall surrounds.

Figure 1: HOROW 48" x 32" Left Drain Shower Base in a bathroom setting.
Package Contents
Verify that all components are present before beginning installation:
- 1 x Shower Base (Model HR-MB4832L)
- 1 x Stainless Steel Matte Black Drain
- 1 x User Manual (this document)
Specifications
| Model Number | HR-MB4832L |
| Dimensions (L x W x H) | 48" x 32" x 3.5" (32"D x 48"W x 3.5"H) |
| Installation Type | Alcove |
| Shape | Rectangular |
| Drain Location | Left |
| Drain Hole Diameter | 3 3/8" |
| Material | Acrylic with Fiberglass Reinforcement |
| Finish Type | Matte |
| Item Weight | 32 lbs |
| Assembly Required | No (Assembly instructions for drain included) |

Figure 2: Product dimensions and drain placement.

Figure 3: Cross-section illustrating the multi-layer material construction.

Figure 4: Underside support structure for stability.
Setup and Installation
The HOROW shower base is designed for alcove installation. While the base itself does not require assembly, proper installation is crucial for its functionality and longevity. It is highly recommended to consult a qualified professional for installation to ensure compliance with local building codes and best practices.
Key Installation Considerations:
- Subfloor Preparation: Ensure the subfloor is level, clean, and structurally sound to support the shower base and user weight.
- Drain Connection: Connect the included stainless steel matte black drain to your plumbing system. Ensure all connections are watertight.
- Leveling: Use shims or mortar bed as necessary to ensure the shower base is perfectly level in all directions.
- Wall Surrounds: The integrated 3-side waterproof flange should be properly sealed to the wall studs and integrated with your chosen wall surrounds (e.g., tile, panels) to prevent water leakage.
- Sealing: Apply a high-quality silicone sealant around all edges where the shower base meets the wall surrounds.
Detailed assembly instructions for the drain are included with the product. For comprehensive installation guidance, refer to the specific instructions provided by your chosen wall surround manufacturer and local plumbing codes.
Operation
The HOROW shower base is designed for standard showering use. Its non-slip surface provides safety, and the efficient drainage system ensures water is quickly removed.
Usage Guidelines:
- Always ensure the drain cover is properly seated before showering.
- The low threshold allows for easy entry and exit, beneficial for all users.
- Avoid standing water by ensuring the drain is clear of obstructions.

Figure 5: Water flow demonstrating efficient drainage.

Figure 6: Non-slip textured floor for user safety.
Maintenance
Regular cleaning and maintenance will preserve the appearance and functionality of your HOROW shower base.
Cleaning Instructions:
- Daily Cleaning: Wipe down the shower base with a soft cloth or sponge and a mild, non-abrasive bathroom cleaner after each use to prevent soap scum and mineral buildup.
- Deep Cleaning: For more thorough cleaning, use a non-abrasive cleaner specifically designed for acrylic surfaces. Avoid harsh chemicals, abrasive pads, or scouring powders, as these can damage the finish.
- Drain Maintenance: Periodically remove the matte black drain cover and clean any hair or debris to ensure optimal drainage and prevent clogs.
The acrylic surface is designed to resist stains and scratches, making cleaning simple and quick.

Figure 7: Removable matte black drain cover for easy cleaning and maintenance.
Troubleshooting
If you encounter any issues with your shower base, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
| Slow Drainage | Hair or debris in drain; improper slope during installation. | Remove drain cover and clear any obstructions. If issue persists, consult a plumber to check installation slope. |
| Water Leaking Around Base | Improper sealing of flange or around base edges. | Inspect sealant around the base and flange. Reapply silicone sealant as needed. Consult a professional if the leak source is unclear. |
| Squeaking or Movement | Insufficient support or uneven subfloor. | This typically indicates an installation issue. Contact a professional to assess and correct the subfloor or support. |
For issues not listed here or if troubleshooting steps do not resolve the problem, please contact HOROW customer service.
Warranty and Support
HOROW stands behind the quality of its products.
- Limited Warranty: This product is backed by a 1-year limited warranty from the date of purchase, covering manufacturing defects.
- Customer Service: HOROW offers lifetime customer service. For any inquiries, assistance, or warranty claims, please contact us. We aim to respond within 12 hours to ensure your satisfaction.
- Return Policy: Standard 30-day return policy applies for eligible purchases. Please refer to your retailer's return policy for details.
Please retain your proof of purchase for warranty claims.





