Hisencn 21" Cast Iron Grill Grates for Dyna-Glo & Blue Rhino — 2-Piece Heavy-Duty 15.5x21 Replacement

These Hisencn cast iron grill grates are a 21-inch replacement set engineered to fit specific Dyna-Glo, Blue Rhino and other compatible gas grills, delivering improved heat retention and strong searing performance.

Whether you need to swap out worn or warped grates or want to upgrade to true cast iron cooking surfaces, this pair of Hisencn grates provides a heavy-duty alternative to factory wire racks. Sold as two one-piece cast iron grates that together span 15.5" x 21", they are built to distribute heat more evenly for better searing and consistent results across your grilling surface. The parts match a range of model numbers from Dyna-Glo and several backyard grill brands—verify dimensions and part numbers before ordering.

Will these grates fit my Dyna-Glo or Blue Rhino grill?

These grates are designed as replacement parts for specific Dyna-Glo and compatible grill models. Check your grill's original grate measurements and part references to confirm a match before purchase.

• Compatible Dyna-Glo models include DGF350CSP, DGF350SNP series and several DGH/DGC variants.
• Also fits selected Blue Rhino and Backyard Grill models such as GBC1932L, GBC1406W, GBC1707W(-C) series.
• Total coverage: two cast pieces that together measure approximately 15.5" x 21".

How do these cast iron grates change cooking performance?

Cast iron stores and spreads heat much better than thin steel rod grates, which enhances searing and helps maintain steady temperatures across the surface. Expect deeper sear marks, more even browning, and improved retention of heat when the grates are properly preheated.

• Superior heat retention for consistent grill marks and crust formation.
• More even surface temperature reduces hot and cold spots.
• Better flavor development from consistent contact and caramelization.

What maintenance do these cast iron grates require?

Cast iron needs a simple but regular care routine to prevent sticking and rust. Season before first use and after deep cleaning; keep the grates dry and lightly oiled for storage to extend their life.

• Coat with a thin layer of cooking oil before each cook to reduce food sticking.
• After use, clean by scraping and reheating briefly, then oil to protect the surface.
• For long-term storage, apply a heavy coat of grease and store in a dry, covered place or sealed bag.

What should I know about shipping and fragile parts?

Cast iron is strong in use but can crack from impacts during transit. Hisencn packages these grates carefully, but occasionally damage can occur, and the seller offers replacement support if breakage happens in shipment.

• Grates are recommended to be handled with care during unpacking to avoid chipping or breaking.
• Inspect parts immediately upon delivery and compare dimensions before installation.
• Contact the seller for free replacement if grates arrive damaged.

Who is this for? This Hisencn 21-inch cast iron grate set is ideal for grill owners who want to replace worn factory grates with a heavier, heat-retaining surface that improves searing and temperature consistency. It suits owners of the listed Dyna-Glo, Blue Rhino, Backyard Grill and compatible models who are comfortable doing a basic fit check and performing routine cast-iron maintenance. If you prefer low-maintenance plated grates or cannot confirm model compatibility, check measurements and model numbers before buying.