Introduction
This manual provides instructions for the installation, operation, and maintenance of the BLANCO Quatrus R15 Stainless Steel Single Bowl Undermount Kitchen Sink, model 519548. Please read these instructions carefully before installation and use to ensure proper function and longevity of your sink.
Product Features
- Constructed from 304 Series Stainless Steel with 18/10 Chrome-Nickel content.
- Features a refined brushed finish.
- Designed with rounded 15 mm corners for ease of cleaning.
- Undermount installation for seamless countertop integration.
- Resistant to heat, rust, corrosion, water stains, and calcium deposits.
- Bowl Depth: 9 inches.
- Required outside cabinet: 36 inches.
Setup and Installation
The BLANCO Quatrus R15 sink is designed for undermount installation. Professional installation is recommended to ensure proper fit and sealing.
Included Components:
- Kitchen sink
- Cut-out template
- Installation instructions
Installation Steps:
- Preparation: Ensure the countertop opening is correctly sized using the provided cut-out template. The required outside cabinet dimension is 36 inches.
- Mounting: Follow the detailed installation instructions provided with the sink for securing the sink to the underside of the countertop.
- Sealing: Apply a suitable sealant around the rim of the sink before mounting to prevent water leakage.
- Drain Assembly: Install the drain assembly according to the manufacturer's instructions. The sink is compatible with a lift and turn drain type.
- Faucet Installation: Install your chosen faucet into the pre-drilled holes in the countertop, ensuring all connections are secure and watertight.

Image: The BLANCO Quatrus R15 sink seamlessly integrated into a kitchen island, showcasing its undermount installation.

Image: A close-up view of the BLANCO Quatrus R15 sink, highlighting its single bowl design and brushed stainless steel finish.

Image: The BLANCO Quatrus R15 sink as a central feature in a kitchen island, paired with a contemporary pull-down faucet.
Operating Instructions
The BLANCO Quatrus R15 sink is designed for daily kitchen tasks. Its single bowl configuration provides ample space for washing larger items.
- General Use: Use the sink for washing dishes, preparing food, and other typical kitchen activities.
- Drainage: The sink is designed for efficient drainage. Ensure the drain is clear of large food particles to prevent blockages.
- Accessories: Optional accessories such as a grid (item #231599/231608), colander (item #224387), cutting board (item #231609), and drying mat (item #238483) can enhance functionality.

Image: The BLANCO Quatrus R15 sink shown with an optional protective grid and dishes, demonstrating its practical use.
Maintenance and Care
Proper care will help maintain the appearance and longevity of your stainless steel sink.
- Daily Cleaning: After each use, rinse the sink thoroughly with water and wipe it dry with a soft cloth to prevent water spots and mineral buildup.
- Hand Washing: The manufacturer recommends hand washing for product care. Avoid harsh abrasive cleaners or steel wool, which can scratch the surface.
- Stain Removal: For stubborn stains, use a non-abrasive stainless steel cleaner and follow the product instructions. Always rinse thoroughly after cleaning.
- Preventing Scratches: While the refined brushed finish helps hide scratches, avoid dragging sharp or heavy objects across the sink surface. The use of a sink grid can provide additional protection.
- Corner Cleaning: The rounded 15 mm corners are designed to be easier to clean, reducing grime buildup.
Troubleshooting
This section addresses common issues you might encounter with your stainless steel sink.
Issue: Water Spots or Streaks
Solution: Water spots are common with stainless steel, especially in hard water areas. To minimize, always wipe the sink dry with a soft cloth after each use. For existing spots, use a stainless steel cleaner or a solution of vinegar and water, then rinse and dry.
Issue: Scratches on Surface
Solution: Stainless steel can scratch. The BLANCO Quatrus R15 features a refined brushed finish designed to help hide minor scratches. To prevent new scratches, avoid abrasive materials and sharp objects. Consider using a sink grid.
Issue: Slow Drainage
Solution: Check the drain for any obstructions, such as food particles. If the issue persists, the plumbing beneath the sink may require inspection by a qualified plumber.
Issue: Dull Finish
Solution: Over time, mineral deposits or residue from cleaning products can dull the finish. Use a specialized stainless steel polish or cleaner to restore luster. Always follow product instructions and rinse thoroughly.
Specifications
| Brand | BLANCO |
| Model Number | 519548 |
| Material | 304 Series Stainless Steel, 18 Gauge |
| Chrome-Nickel Content | 18/10 |
| Color/Finish | Stainless Steel, Brushed Finish |
| Product Dimensions (L x W x H) | 32" L x 18" W x 9" H |
| Bowl Depth | 9 inches |
| Required Outside Cabinet | 36 inches |
| Installation Type | Undermount |
| Shape | Rectangular |
| Drain Type | Lift and Turn |
| Item Weight | 21 Pounds |
| UPC | 747943031967 |

Image: The BLANCO Quatrus R15 sink shown installed in a contemporary kitchen. Refer to the table above for detailed dimensions.
Warranty Information
This BLANCO sink comes with a Limited Lifetime Warranty. For specific terms and conditions, please refer to the warranty documentation included with your product or visit the official BLANCO website.
Support
For technical assistance, replacement parts, or further inquiries regarding your BLANCO Quatrus R15 sink, please contact BLANCO customer service. Contact information can typically be found on the BLANCO official website or in the packaging materials.
You can also visit the BLANCO Store on Amazon for more product information and accessories.





