1. Product Overview
The Franke EDOX33229-1 is a refined and luxurious double bowl kitchen sink, crafted from composite granite in an elegant Onyx finish. Designed for durability and ease of maintenance, this sink features a built-in protective barrier called Sanitized, which actively fights bacteria even between cleaning cycles. Its versatile design allows for both topmount and undermount installation, making it suitable for various kitchen configurations.

Image 1.1: The Franke EDOX33229-1 Onyx granite double bowl kitchen sink, showcasing its two deep bowls and single pre-drilled faucet hole.
2. Key Features
- Sanitized Protection: Features a built-in protective barrier that inhibits bacterial growth, complementing regular cleaning practices.
- Durability: Constructed from composite granite, offering high resistance to scratches, stains, and heat.
- Deep Bowls: Equipped with two large capacity 9-inch deep bowls, providing ample space for various kitchen tasks.
- Flexible Installation: Can be installed as either a topmount (drop-in) or undermount sink. Professional installation is recommended for undermount applications.
- Faucet Ready: Comes with one pre-drilled hole for a faucet, with the option to knock out up to three additional holes as needed.
- Included Accessories: Supplied with mounting hardware and a cutout template for installation.
3. Setup and Installation
3.1 Before You Begin
- Ensure your cabinet meets the minimum size requirement of 36 inches for proper fitment.
- Unpack the sink and inspect it for any damage. Report any issues to your supplier immediately.
- Gather all necessary tools and materials, including a sealant (e.g., silicone), appropriate cutting tools for your countertop, and safety gear.
3.2 Installation Types
This sink supports two primary installation methods:
- Topmount (Drop-in) Installation: The sink rim rests on top of the countertop. This method is generally simpler for DIY enthusiasts.
- Undermount Installation: The sink is mounted beneath the countertop, creating a seamless look. Professional installation is highly recommended for undermount applications due to the precision required for cutting and sealing.
3.3 Installation Steps (General)
- Prepare Countertop: Use the provided cutout template to mark and cut the opening in your countertop. Ensure the edges are smooth and clean.
- Apply Sealant: Apply a continuous bead of silicone sealant around the perimeter of the sink opening on the countertop (for topmount) or on the sink flange (for undermount).
- Position Sink: Carefully lower the sink into the opening, ensuring it is properly aligned.
- Secure Sink: Use the included mounting hardware to secure the sink firmly to the underside of the countertop. Tighten evenly to ensure a good seal.
- Connect Plumbing: Install the drain assemblies and connect the plumbing according to local codes. Connect the faucet to the pre-drilled hole(s).
- Cure Sealant: Allow the sealant to cure completely before using the sink, as per the sealant manufacturer's instructions.
4. Operating Your Sink
The Franke EDOX33229-1 sink is designed for everyday kitchen use. Its deep bowls accommodate large pots and pans, making dishwashing and food preparation efficient. The granite composite material provides a durable surface for various tasks.
- Water Usage: Use water as needed for washing, rinsing, and other kitchen activities.
- Drainage: Ensure proper drainage by keeping the drain clear of large food particles.
- Temperature: The sink is heat resistant, allowing for hot water and hot items to be placed in it, though extreme thermal shock should be avoided.
5. Maintenance and Care
Proper care will ensure the longevity and appearance of your Franke granite sink. The Sanitized feature assists in hygiene, but regular cleaning is still essential.
- Daily Cleaning: Wipe the sink with a dry cloth after each use to prevent water spots and mineral buildup.
- General Cleaning: For routine cleaning, use a mild dish soap and a soft cloth or sponge. Rinse thoroughly with water.
- Stain Removal: For stubborn stains, a non-abrasive cleaner specifically designed for granite composite sinks can be used. Avoid harsh chemicals, abrasive pads, or steel wool, as these can damage the surface.
- Preventing Discoloration: Avoid leaving highly acidic or alkaline substances, such as lemon juice, vinegar, or strong cleaning agents, on the sink surface for extended periods. Rinse immediately if contact occurs.
- Heat Protection: While heat resistant, it is advisable to use a trivet or hot pad for extremely hot pots and pans to prevent potential thermal shock or localized discoloration over time.
6. Troubleshooting
This section addresses common concerns that may arise with your granite composite sink.
| Problem | Possible Cause | Solution |
|---|---|---|
| Sink appears dull or stained | Mineral deposits from hard water, food residue, or improper cleaning agents. | Regularly wipe dry after use. Use a mild cleaner or a specialized granite sink cleaner. For mineral buildup, a diluted vinegar solution can be used, followed by thorough rinsing. |
| Water spots visible | Hard water residue. | Wipe the sink dry immediately after each use. |
| Chipping or cracking | Impact from heavy objects, improper installation, or extreme thermal shock. | Avoid dropping heavy items into the sink. Ensure proper installation with adequate support. Avoid sudden extreme temperature changes. If damage occurs, contact Franke customer support. |
7. Specifications
Detailed technical specifications for the Franke EDOX33229-1 sink.
- Model Number: EDOX33229-1
- Color: Onyx
- Material: Granite Composite
- Overall Dimensions: 33" (Width) x 22" (Depth) x 9" (Height/Depth)
- Internal Bowl Dimensions: Approximately 17" x 14.25" (each bowl)
- Minimum Cabinet Size: 36 inches
- Installation Type: Undermount, Drop-in (Topmount)
- Faucet Holes: 1 pre-drilled, up to 3 additional knock-out holes
- Item Weight: 45 pounds
- UPC: 039487148004
- Manufacturer: Franke USA
8. Warranty and Support
Franke USA provides a Limited Lifetime Warranty for the EDOX33229-1 sink, covering manufacturing defects under normal use and service. For warranty claims, technical assistance, or product support, please contact Franke USA customer service directly.
Please retain your proof of purchase for warranty validation.





