QuliMetal 9mm SUS304 Grill Grates for Weber Spirit 300 & Spirit II 300 — Pair, Heavy‑Duty Stainless for Better Heat Retention

These QuliMetal 9MM SUS304 replacement grill grates are a heavy‑duty, corrosion‑resistant pair designed to fit Weber Spirit 300 and GS4 Spirit II 300 series grills for reliable searing and long service life.

If your original Weber grates are warped, rusted, or simply past their prime, these aftermarket replacements give you the same footprint and stronger build. Engineered from solid 9mm SUS304 stainless steel rods, the pair restores cooking surface area, improves heat retention, and resists deformation from repeated high‑heat use. They match common Weber part numbers used across Spirit 300, Spirit II 300, many Genesis and Smokefire models, and ship as two grates sized to the factory cooking grids.

Will these grates actually fit my Weber Spirit 300 or Spirit II 300?

Yes — the QuliMetal set is sized to replace the original 17.4 x 11.7‑inch sections used in most Spirit 300 and Spirit II 300 series grills. They are designed to sit in the same supports and align with the factory spacing for consistent cook surface placement.

• Compatible with Weber Spirit E310/E315/E320/E330 and Spirit S310/S315/S320/S330.
• Also fits many Genesis (2000–2010 and later models) and some Smokefire EX4/EX6 models.
• Replaces original Weber part numbers such as 7638, 7525, 7527, 65619, 65906.
• Not compatible with Genesis Silver A models.

How does 9mm solid‑rod construction improve grilling performance?

The thicker 9mm solid rods increase mass and thermal capacity, so the grate holds heat better and recovers temperature faster after you add food. The dense stainless steel bars also resist bending and remain true under heavy cookware or repeated thermal cycling.

• 9mm diameter solid rods for improved heat retention and even sear marks.
• SUS304 stainless resists rust and stands up to grilling temperatures.
• Heavier 16.98 lb construction reduces warping and shifting during use.
• Solid rods create durable contact points for consistent grill marks.

How do I care for and clean these stainless steel grates?

Routine maintenance is straightforward: preheat to burn off residue, brush with a stainless bristle or nylon grill brush, and wipe with a damp cloth. For tougher buildup, soak in warm soapy water or use a dedicated stainless cleaner; avoid harsh abrasive pads that can scratch the finish.

• Preheat grill to loosen food then brush clean before cooling.
• Use warm water and mild detergent for periodic deep cleaning.
• Dry completely to maintain corrosion resistance and prevent spotting.
• Avoid aggressive chemicals that can harm stainless surface passivation.

What are the exact dimensions and package details I should expect?

Each grate measures 17.4 x 11.7 inches; the set covers the full 17.4 x 23.4‑inch combined cooking area typical for Spirit 300 grills. They are supplied as a pair, ready to drop into your existing grate supports without modification.

• Single grate: 17.4 x 11.7 inches. Pair combined: 17.4 x 23.4 inches.
• Material: SUS304 solid stainless steel rods, 9mm diameter.
• Package contains two grates weighing approximately 16.98 pounds total.
• Designed as direct replacements for many Weber factory grids.

Who this is for: Home grillers who own a Weber Spirit 300 or Spirit II 300 series (or compatible Genesis/Smokefire models) and want a long‑lasting, replacement cooking surface that improves heat retention and resists warping. It’s ideal for people who cook frequently, use heavy cast iron cookware, or want better sear performance without replacing the whole grill. If you need exact compatibility, check your model and part number list against the included references before ordering.