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Drop-In Stainless Steel Sinks

by Griffin


Superior quality sinks from Griffin may be the last you'll ever need. These high-grade, stainless steel kitchen sinks offer over 40 years of customer satisfaction in a product that is made to last. With styles ranging from a single bowl coved corner style to the triple bowl square corner design, we are sure to have the sink that meets your needs. We even offer unique four bowl drop-in sinks. Plus, don't forget to see Griffin's beautiful new residential styles.

Proudly made in the USA

NSF Listed Coved Corner Drop-In Sinks

Griffin coved corner NSF approved single bowl sink
Griffin double bowl coved corner NSF approved sink
Griffin triple bowl coved corner kitchen sink
Griffin triple bowl coved corner kitchen sink
These rounded corner design drop-in sinks feature:
  • These satin finished drop in sinks are great for converting existing counters to sink stations, or for using in new construction to be more space-efficient
  • NSF approved for use as food equipment, so these are great for restaurants or professional kitchens
  • Durable 16 gauge, type-304 construction
  • Available in 1,2,3 and 4 compartment models with 12" sink depth
  • True-Gauge bowl construction means the smooth-finished seams and corners are just as sturdy as the walls of the sink
  • 3-1/2" basket drains included for each bowl
  • Front and side rims are 1-1/2" wide and rear deck is 3" wide, as well as providing plenty of support for the sink
  • Faucet holes are 1-1/8" diameter
  • Coved compartment has 3/4" radius, both horizontal and vertical for ease of cleaning
  • Unitized construction with stiffeners welded directly to sink bowls to ensure maximum rigidity
  • Sink compartment(s) have noise reducing pads to deaden sound
  • Manufacturer's limited lifetime warranty
  • Sinks proudly made in the USA

Drop in sinks are a great idea for kitchens without a lot of extra floor space for a freestanding sink unit. Let your floor space do double duty as a cabinet below and drop in sink above with these great commercial kitchen sinks. Whether you need a single, double, triple, or quadruple bowl, these NSF approved sinks will meet your hand washing, food prep, and dishwashing needs.


Single Bowl Drop-in Sinks


Model Bowl Depth Bowl Size Overall Dimensions Price & Quantity
RC-104 12" 10" x 14" 13" x 18-1/2" $699.98 Enter a quantity and
RC-178 12" 12" x 18" 15" x 22-1/2" $735.34 Enter a quantity and
RC-168 12" 16" x 18" 19" x 22-1/2" $775.15 Enter a quantity and
RC-188 12" 18" x 18" 21" x 22-1/2" $788.11 Enter a quantity and
RC-148 12" 24" x 18" 27" x 22-1/2" $825.86 Enter a quantity and
RC-138 12" 30" x 18" 33" x 22-1/2" $884.43 Enter a quantity and
RC-198 12" 36" x 18" 39" x 22-1/2" $1,037.13 Enter a quantity and


Double Bowl Drop-in Sinks


Model Bowl Depth Bowl Size Overall Dimensions Price & Quantity
RC-204 12" 10" x 14" 24" x 18-1/2" $950.92 Enter a quantity and
RC-278 12" 12" x 18" 28" x 22-1/2" $1,005.31 Enter a quantity and
RC-268 12" 16" x 18" 36" x 22-1/2" $1,075.12 Enter a quantity and
RC-288* 12" 18" x 18" 40" x 22-1/2" $1,108.13 Enter a quantity and
Due to weight and to ensure safe delivery, the RC-288 sink ships by truck and has a $175 additional shipping fee per freight item.
Please select your type of address: Commercial -or- Residential


Triple Bowl Drop-in Sinks


Model Bowl Depth Bowl Size Overall Dimensions Price & Quantity
RC-304 12" 10" x 14" 35" x 18-1/2" $1,259.34 Enter a quantity and
RC-378 12" 12" x 18" 41" x 22-1/2" $1,336.90 Enter a quantity and
RC-368 12" 16" x 18" 53" x 22-1/2" $1,428.86 Enter a quantity and
RC-388 12" 18" x 18" 59" x 22-1/2" $1,475.33 Enter a quantity and
Due to weight and to ensure safe delivery, these items ship by truck and have a $175 additional shipping fee per freight item.
Please select your type of address: Commercial -or- Residential


Triple Four Drop-in Sinks


Model Bowl Depth Bowl Size Overall Dimensions Price & Quantity
RC-404 12" 10" x 14" 46" x 18-1/2" $1,568.89 Enter a quantity and
RC-478 12" 12" x 18" 54" x 22-1/2" $1,689.55 Enter a quantity and
RC-468 12" 16" x 18" 70" x 22-1/2" $2,178.51 Enter a quantity and
RC-488 12" 18" x 18" 78" x 22-1/2" $2,241.39 Enter a quantity and
Due to weight and to ensure safe delivery, these items ship by truck and have a $175 additional shipping fee per freight item.
Please select your type of address: Commercial -or- Residential


Square Corner Drop-In Utility Sinks

Griffin squared corner single bowl sink
Griffin double bowl squared corner design sink
Griffin triple bowl square corner design sink
Griffin four bowl square corner design sink
These squared corner design drop-in sinks feature:
  • These square corner sinks give you the most space for your bowl size as the edges do not slope
  • Unibody 16 gauge, type-304 construction for maximum durability
  • Sink compartments are sound deadened with noise reducing pads
  • All seams are welded and ground to a smooth finish
  • Front and side rims are 1-1/2", while rear deck is 3" wide with 1-1/8" faucet holes designed to fit standard commercial deck mount faucets
  • Available in 1,2,3 and 4 compartment models
  • 3-1/2" basket drain included
  • Manufacturer's limited lifetime warranty
  • Sinks proudly made in the USA

These squared corner sinks are manufactured with the same attention to detail Griffin gives all of their stainless steel sinks. All corners are square, which gives you a bit more room at the bottom of the bowl than sinks with sloped edges and coved corners. Designed to handle some of the toughest commercial environments, these sinks are great for numerous applications where a utility sink is needed, but when NSF approval is not required, such as some kitchens, laundry rooms, industrial applications, or even (we've heard) in a photo lab!


Single Bowl Drop-in Sinks


Model Bowl Depth Bowl Size Overall Dimensions Price & Quantity
RS-104 12" 10" x 14" 13" x 18-1/2" $581.69 Enter a quantity and
RS-178 12" 12" x 18" 15" x 22-1/2" $626.51 Enter a quantity and
RS-168 12" 16" x 18" 19" x 22-1/2" $681.11 Enter a quantity and
RS-188 12" 18" x 18" 21" x 22-1/2" $705.73 Enter a quantity and
RS-148 12" 24" x 18" 27" x 22-1/2" $769.31 Enter a quantity and
RS-138 12" 30" x 18" 33" x 22-1/2" $832.70 Enter a quantity and
RS-198 12" 36" x 18" 39" x 22-1/2" $907.10 Enter a quantity and


Double Bowl Drop-in Sinks


Model Bowl Depth Bowl Size Overall Dimensions Price & Quantity
RS-204 12" 10" x 14" 23" x 18-1/2" $782.95 Enter a quantity and
RS-278 12" 12" x 18" 27" x 22-1/2" $874.77 Enter a quantity and
RS-268 12" 16" x 18" 35" x 22-1/2" $1,016.34 Enter a quantity and
RS-288 12" 18" x 18" 39" x 22-1/2" $1,011.17 Enter a quantity and


Triple Bowl Drop-in Sinks


Model Bowl Depth Bowl Size Overall Dimensions Price & Quantity
RS-304 12" 10" x 14" 33" x 18-1/2" $1,002.32 Enter a quantity and
RS-378 12" 12" x 18" 39" x 22-1/2" $1,117.31 Enter a quantity and
RS-368 12" 16" x 18" 51" x 22-1/2" $1,244.22 Enter a quantity and
RS-388 12" 18" x 18" 57" x 22-1/2" $1,327.24 Enter a quantity and


Four Bowl Drop-in Sinks


Model Bowl Depth Bowl Size Overall Dimensions Price & Quantity
RS-404 12" 10" x 14" 43" x 18-1/2" $1,422.96 Enter a quantity and
RS-478 12" 12" x 18" 51" x 22-1/2" $1,563.92 Enter a quantity and
RS-468 12" 16" x 18" 67" x 22-1/2" $1,780.19 Enter a quantity and
RS-488 12" 18" x 18" 75" x 22-1/2" $1,944.89 Enter a quantity and


Looking for faucets made in the USA? Check out our extensive selection of quality Fisher commercial faucets all made right here in the United States.


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Frequently Asked Questions

Q. "Please explain the best gauge of stainless and which is longer lasting?"
A. The lower the number, the thicker the material. In our opinion, 22 gauge is bare minimum - builder quality. During the manufacturing process, stainless steel sinks are "stamped" into shape. That means that the material stretches and therefore the corners can be very thin. We suggest at least 20 gauge and preferably 18 gauge.

Q. "What is True-Gauge?"
A. Unlike a stamped sink where metal gets stretched thin in certain places, True-Gauge sinks are folded meaning that every part of the sink is the same gauge. Whether it be the welds, corners, or bowl; True-Gauge assures that every part of your sink will have the same gauge.

Q. "What do the different types of stainless steel (304, 316, etc) mean?"
A. The term "stainless steel" refers to specific grades of steel that contain more than 10% chromium. Stainless steel may also include a variety of other elements (such as nickel, titanium, molybdenum, etc); it resists corrosion and is generally a stronger, more reliable steel. The most common grades of stainless steel are:

Type 304: Aside from having a higher content of chromium than most other types of stainless steel, type 304 also contains nickel; this enables it to withstand most ordinary corrosion in architecture, is durable in typical food processing environments, and resists most chemicals.

Type 316: Similar to type 304, but also contains a small amount of molybdenum, which is an alloy element #304 does not contain (but one that provides even stronger resistance to some deterioration). Types 304 and 316 are grades of stainless steel that are most often used in plumbing, as well as in the manufacturing of kitchen utensils and sinks.

Type 409: Does not contain virtually any nickel at all, but also is the stainless steel that contains the least amount of chromium. Type 409 is more suitable for high temperature applications, which is why it's often used in automotive trim and exhaust systems, or hot water tanks.

Type 410: Also does not contain any significant nickel; its primary difference to type 409 stainless is characterized by the use of heat treatment for hardening and strengthening. Type 410 is not appropriate for severely corrosive applications, but used instead in environments that require high strength; this is why it's the type of stainless steel that's often used in surgical equipment.

Type 430: Another plain-chromium stainless steel, similar to type 409, but is usually used in decorative applications.


Please note: While we strive to ensure every product we label as "Made in the USA" really is 100% made in the USA, it is also important to understand that sometimes manufacturers make changes to their products, or for various reasons may receive components or materials that they would normally purchase domestically from an overseas supplier - and they don't necessarily let distributors (like us!) know that they've changed something about the product or where it is manufactured.

If you receive a product that PlumbingSupply.com® says is "Made in the USA" and the product states it was manufactured elsewhere, please contact us. We will happily replace or refund your purchase to your satisfaction.


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