Blanco Diamond 33" Drop-In or Undermount Double Basin SILGRANIT Kitchen Sink
Model: 441285
- Anthracite$484.9022 In Stock
- Cafe Brown$484.9020 In Stock
- Cinder$484.909 In Stock
- Coal Black$484.906 In Stock
- Metallic Gray$484.9021 In Stock
- Soft White$484.90Special Order
- Truffle$484.9013 In Stock
- Volcano Gray$484.90Special Order
- White$484.9010 In Stock
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Product Overview
This product has additional required/recommended options. To configure, add to your cart.
- Basin Rack Recommended
- Basket Strainer Recommended
- Cutting Board Recommended
- Disposal Flange Recommended
- Garbage Disposal Recommended
- Kitchen Faucet Recommended
- Mounting Hardware Recommended
- Soap Dispenser Recommended
- Wastebin Recommended
Both an expression of your individual style, and a testament to BLANCO's unsurpassed quality and craftsmanship - a variety of shape, sizes and features combine to bring you the DIAMOND collection. Every detail has been considered, from the large bowl capacity to the easy-to-clean, durable SILGRANIT surface. The BLANCO DIAMOND Dual Deck Equal Double Bowl offers plenty of room for rinsing, washing, soaking, spraying and straining operations. Made from the rock hard, SILGRANIT patented surface, the DIAMOND kitchen sink features a smooth surface that is resistant to chips, scratches and heats up to 536°F. Even a fork or the bottom of a hot pan can't damage BLANCO SILGRANIT sinks. The colorful, non-porous surface also makes the bowl resistant from all stains, household acids and alkali solutions as well as easy-to-clean. For three generations, BLANCO has quietly and passionately elevated the standards for luxury sinks, faucets, and decorative accessories. A family-owned company, BLANCO was founded over 85 years ago in Germany, and recently celebrated a milestone of 25 years in the United States where they were recognized as a leader in quality, innovation, and unsurpassed service. Create the ideal kitchen experience with the versatility of the DIAMOND collection.
Blanco 440221 Features:
- Sink is covered under Blanco's limited lifetime warranty
- Premier finishing process - will resist staining, chipping and scratching through every day use
- Double basin sink with a 50/50 split provides increased versatility for any task
- Blanco sinks feature extremely hygienic, non-porous surfaces
- Constructed of Blanco's SILGRANIT material - making it durable and fade resistant
- Installs in a drop-in or undermount configuration - providing a sturdy mount and integrated look
- Required clips for undermount installation type are not included - when adding sink to cart these will be presented as an option for purchase
- Rear drain location increases workspace are in the sink as well as storage space underneath
- This Blanco Sink comes with 1 faucet hole ready for use, and 4 prepared "knock-outs" to create additional holes for use.
SILGRANIT FEATURES AND BENEFITS: Life in the kitchen can get messy. With Over 30 years of material development, SILGRANIT has been engineered to take on the toughest kitchen tasks. Our patented sink material is strong and more durable than other sink surfaces. There is no risk of thermal shock and SILGRANIT will not blister, burn, melt or discolor from heat. With its non-porous, hygienic surface, it has the ability to push away liquids and residue resulting in a low maintenance, long-lasting material that is not only scratch and stain resistant, but easy to clean.
STAIN RESISTANT: Non-porous surface repels liquids and does not absorb bacteria or odors
SCRATCH RESISTANT: Simply scrub off marks left behind forks or knives
HEAT RESISTANT: Takes heat up to 536°, exceeding common boiling and baking temperatures
HYGIENIC+PLUS SURFACE TECHNOLOGY: Acts as a shield against dirt and dampness – inhibiting bacteria growth by up to 98%
IMPACT RESISTANT: Will not crack or break if heavy pots or pans are dropped into the sink
EASY-TO-CLEAN: Baking soda and a sponge are all you need. No harsh chemicals required.
Additional Blanco Links
This product is listed under the following manufacturer number(s):
- Blanco 440220
Anthracite - Blanco 441217*
Biscotti - Blanco 440222*
Biscuit - Blanco 440218
Cafe Brown - Blanco 441466
Cinder - Blanco 442912
Coal Black - Blanco 442748*
Concrete Gray - Blanco 440219
Metallic Gray - Blanco 443067
Soft White - Blanco 441285
Truffle - Blanco 443104
Volcano Gray - Blanco 440221
White
*Denotes a finish or option that has been discontinued.
Manufacturer Resources
Dimensions and Measurements
Included Components
Characteristics and Features
Warranty and Product Information
How to use extra faucet holes on your Blanco sink
Our own Milan Rosan shows how to utilize the knock-out additional...Blanco's Silgranit II Stain Resistance test
Here at Build.com, we wanted to see how well Blanco's Silgran...

How to use extra faucet holes on your Blanco sink
Our own Milan Rosan shows how to utilize the knock-out additional faucet holes that are pre-drilled in your new Blanco Silgranit sink. Note, it helps to steady the sink properly and take care when doing so.

Blanco's Silgranit II Stain Resistance test
Here at Build.com, we wanted to see how well Blanco's Silgranit II resists stains. We used a Blanco Diamond sink in white (440216) with serious stain offenders left for 24 hours. See the surprising results.

Do It Yourself: Replacing or Installing a Kitchen Sink
Changing out your old kitchen sink for a new one can seem like a very difficult do-it-yourself job. However, it does not have to be! Follow Milan Rosan of Build.com as he shows you the step-by-step process of replacing and installing your kitchen sink in your home.
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