#1 Home Improvement Retailer

Internet # 306629594

Model # COS-GRT304

30 in. Gas Cooktop with 4 Burners in Stainless Steel

  • 30 in. gas cooktop has 4 high performance sealed gas burners
  • Cook faster with the 18,000 BTUs dual ring burner
  • Gas cooktop includes 2-year limited warranty
  • View More Details
Free & Easy Returns In Store or Online
Return this item within 90 days of purchase. Read Return Policy

Product Details

About This Product

Set the stage for inspired cooking with Cosmos professional style slide-in gas range top. Our sleek, streamlined design features 4 sealed gas burners which allow you to cook from a high heat for boiling, frying or searing to a low simmer. Our dual-stacked, sealed burner design allows you to cook with confidence that spills and sloshes stay put for fast, easy cleanups. A 3-prong power plug is included for easy use.


  • 30 in gas cooktop lets you simplify meal preparation with 4 burners, allowing you to have more cooking and warming flexibility
  • 30 inch gas cooktop with an 18,000 BTUs Dual ring burner for high heat searing
  • 13,000 BTUs Rapid burner for high heat cooking
  • 8,500 BTUs Semi-Rapid burner for all forms of cooking
  • 4,200 BTUs Auxiliary Burner for low heat cooking and simmering
  • Front heavy duty metal constructed knobs provide easy access to flame settings
  • Black porcelain cooktop surface makes cleanup easy
  • Sealed burners deliver exceptional performance and provide easy cleanup
  • Cast iron grates provide long lasting use and durability
  • Continuous heavy duty cast iron grates keep cookware stable and make transporting of heavy pots convenient
  • Electronic ignition for safety and efficiency. 3-prong power plug.
  • 2 Year Limited Warranty
  • CSA mark demonstrates that a product has been rigorously tested to applicable North American and global standards.
  • Cooktops by Surface: 30 in. Gas Cooktops
  • Cooktops By Number of Burners: 5 Burners
  • Cooktops by Feature: Stovetop LP Convertible
  • Brand: Cosmo; Shop By Surface: Radiant; Shop by Number of Burners: 4-Burners; Shop by Feature: Safety
  • Click here for more information on Electronic Recycling Programs
  • Return Policy

Product Information

Internet # 306629594

Model # COS-GRT304


Dimensions: H 7.9 in, W 29.8 in, D 27.36 in


Cooktop Size

30 in.

Cut-Out Front to Back Depth (in.)


Cut-Out Height (in.)


Cut-Out Left to Right Width (in.)


Product Depth (in.)

27.36 in

Product Height (in.)

7.9 in

Product Width (in.)

29.8 in


Appliance Category


Appliance Series

Not Applicable

Appliance Type

Gas Cooktop

Burner Grate Material

Cast Iron

Burner No.1 BTU


Burner No.2 BTU


Burner No.3 BTU


Burner No.4 BTU



Stainless Steel

Color/Finish Family

Stainless Steel



Control Location


Cooktop Control Type

Standard Dial Control

Cooktop Features

Sealed Burners, Standard Features Only

Cooktop Surface Type


Fuel Type


Hardware Color/Finish

Stainless Steel

Hardware Color/Finish Family

Stainless Steel

Ignition Type



Hardware, Installation Kit, Power Cord

Number of Burners

4 burner

Product Weight (lb.)

71.43 lb



Warranty / Certifications

Certifications and Listings

CSA Listed

Manufacturer Warranty

2 Year Limited Warranty

Questions & Answers

Q:2 questions: Do you need a commercial vent hood for this cooktop? What size based cabinet is used with the 30" cooktop - a 30" or must the base cabinet be 32" or 36"?
by|Aug 16, 2020
2 Answers
Answer This Question

A:  The vent hood was my first step and I chose a 36" Broan 600cfm with bar filters that could be rear vented because this 1954 house already had a vent pipe from the original gas oven. I used a 30" stainless worktable adapted for the space that I can adjust lower when I do the tile. Also used a 36" x 24" Broan stainless backsplash that was $80 from Lowes (oddly not available from HD)

by|Jan 29, 2021

A:  Thank you for your question. A commercial vent hood is not required for this cooktop and the worktop space where the cooktop will be placed should measure around 29 13/18 inches. If you have any further questions, please feel free to reach out to us directly at 1-888-784-3108. This answer is valid for this model as of 5/13/2021.

by|May 14, 2021
    Q:Can this range use propane?
    by|Jul 6, 2019
    1 Answer
    Answer This Question

    A:  Thank you for your question. This cooktop can be used with propane after being converted using a propane conversion kit, which needs to be purchased separately. The propane conversion kit is specific to this model. If you need assistance on finding the correct conversion kit, please send an email to staff@cosmokitchenproducts.com

    by|Jul 8, 2019
      1 found this answer helpful
      Q:Can this be use outdoor?
      by|Apr 6, 2019
      2 Answers
      Answer This Question

      A:  Thank you for your question. This unit is only for indoor domestic use. I hope this information is helpful.

      by|Apr 12, 2019

        A:  Yes, this can be used outdoors.

        by|Apr 11, 2019
          Q:Is this all made in Italy? or where?
          by|Mar 8, 2019
          3 Answers
          Answer This Question

          A:  Believe it manufactured within the United States. I was very pleased with its solidness and functionality as well as appearance. Well priced.

          by|Mar 31, 2019

            A:  COUNTRY OF ORIGIN: China

            by|Mar 8, 2019

            A:  Thank you for your question. The burners are made in Italy, and everything else is made and assembled in China.

            by|Mar 8, 2019
              Showing 1-4 of 4

              Customer Reviews

              4.9 out of 5

              • 4.9 out of 9 reviews
              • 100% recommend this product
              Filter by:
              Showing 1-9 of 9 reviews
              Very cleanable. The grates aren't too heavy
              I bought the stove top last November. I wanted to upgrade my kitchen. House was built in the 70 s . Makes our kitchen look so modern.
                • Recommended
                Sleep And Sassy
                Received the cooktop last Wednesday and installed it easily that evening. Is a breeze to keep clean and cooks up quickly anything I put on the cooktop. Very pleased with this purchase!
                  • Recommended
                  Great Purchase
                  Had our old Cooktop for a long time… when it finally “went” we looked around and came across this Cosmo cooktop. Sleek, simple design, easy to install and works like a charm!….. what more can you ask for. Time to Cook! Thank you Cosmo!
                    • Recommended
                    So far the range top is great. Unfortunately, the pressure regulator and right angle elbow connec...
                    So far the range top is great. Unfortunately, the pressure regulator and right angle elbow connector was missing from the package. Cosmo's customer service provided the parts after many emails and pictures. All together I'm very happy with the unit and service.
                    • Verified Purchase
                    • Recommended
                    Rating provided by a verified purchaser...
                    Rating provided by a verified purchaser
                    • Verified Purchase
                    • Verified Purchase
                    Rating provided by a verified purchaser...
                    Rating provided by a verified purchaser
                    • Verified Purchase
                    It is easy to use...
                    It is easy to use
                    • Verified Purchase
                    Love how you can slide pans from burner to burner....
                    Love how you can slide pans from burner to burner. Easy to clean. Very solid and beautiful. We converted to propane with purchased kit. (Once we figured that out). Flames were high due to gas orphices that were switched out to propane ones.You can get LP kit through Cosmo support.
                    • Verified Purchase
                    Showing 1-9 of 9 reviews