







30" Professional Style Gas Range
COS-305AGC-BK
Cosmo’s COS-305AGC-BK freestanding single oven gas range in matte black features 5 high-performance burners to allow you to create culinary masterpieces from start to finish. Designed with a large 5.0 cu. ft. oven to bake and broil meat to a flavorful crispness on the outside while maintaining tender juiciness inside. Rapid Convection from Cosmo delivers superior results that can be tasted with more flavorful cooking. Our single oven gas range cooktop features one 18,000 BTU Burner, one 12,000 BTU Burner, two 6,000 BTU Burners and one 3,500 BTU Burner. A built-in display and electronic controls let you set the clock and timer for precision cooking. For added versatility, an optional Liquid Propane Conversion Kit is sold separately to convert our freestanding gas range to run on propane. The Cosmo Nebula Collection offers reliability with essential features, providing a straightforward solution for those who seek practicality in an appliance.
- Features
- Specifications
- Manuals & Diagrams
- The Nebula Collection offers reliability with essential features, providing a straightforward solution for those who seek practicality in an appliance
- 5.0 cu. ft. oven featuring rapid convection from Cosmo
- Modern and high end style single oven gas range features matte black finish
- Stylish metal control knobs are easy to operate
- 5 High performance sealed burners including a 18,000 BTU burner, a 12,000 BTU burner, two 6,000 BTU burners and a 3,500 BTU burner
- Equipped with a 15,000 BTU bake burner and 7,500 BTU broil burner for ultimate versatility
- Heavy-duty cast iron grates for heat retention and distribution
- Single oven gas range
- Built-in display with clock and timer
- Broiling uses top oven burner for crispy but tender and juicy meat
- Baking uses bottom burner for the sweetest cakes and flavorful roasts
- Oven cavity cooling ventilation system for safe heat dissipation, our single oven gas range is designed with safety and security in mind
- Removable backsplash included; complementary wok ring for stir-fry enthusiasts
- Liquid Propane convertible; purchase orifice kit (sold separately)
- Electrical requirements: 120V/60Hz, 3-Prong Plug
- ETL Listed: ETL Listed products demonstrate compliance to North American safety standards published by relevant NRTLs (Nationally Recognized Testing Laboratories)
Dimensions (HxWxD): 36.1″-37.3″ x 29.8″ x 25″ | Number of Cooktop Burners: 5 | Oven Cleaning Options: Standard Clean | Cooktop Control Type: Knobs |
Fuel type: Gas | Number of Oven Racks: 2 | Cooking Process: Fan-Assisted Convection | Oven Control Type: Knobs |
Installation: Freestanding; Slide-In | Number of Oven Rack Positions: 6 | Drawer Type: Lower Storage Drawer | Control Location: Front Control |
If you are looking to order parts, please contact our support with the serial number of your unit. Please note: we don’t guarantee availability of all parts.
User Manual (PDF) | Installation Manual (PDF) | Specifications (PDF) | Warranty (PDF) |
Product Highlights

Burners
Equipped with high performance sealed gas burners.
Optional conversion kit makes range compatible with Liquid Propane (sold separately)

Performance
Utilizes a fan in the oven for faster and even heating.
Safely dissipates heat with oven cavity cooling ventilation system.
Equipped with a broiler in the oven.

Design
A built-in display and electronic controls adjust the clock and timer.
Front control knobs easily operate the burners and oven.
Interior oven lighting to monitor food.

Construction
Premium matte black finish.
Removable backsplash for freestanding or slide-in installations.
Features heavy-duty cast iron grates.
Built with durable metal knobs.
Premium Build
Matte black finish gives a professional touch.
Easy Controls
Metal knobs control temperature and function.
Oven Lighting
Interior oven light for easy monitoring of food.

5 Burners
Equipped with sealed gas burners for all your cooking needs.
Convection Fan
Designed to distribute heat evenly to cook foods faster.
Removable Backsplash
Range is suitable for freestanding or slide-in installation.
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