{"product_id":"genesis-cooking-grates-for-weber-genesis-300-series-cast-iron","title":"Genesis Cooking Grates for Weber Genesis 300 Series - Cast Iron","description":"\u003cp\u003eOur review of the Genesis Cooking Grates for Weber Genesis 300 Series looks at whether these cast iron replacement grates are a practical upgrade for owners of older Genesis E\/EP and S models. The bottom line: these heavy cast iron grates are for homeowners who want improved searing and more even heat retention, especially for grills built between 2007 and 2016. They replace the original rod-style bars with thicker cast iron that holds temperature better and delivers professional sear marks, making them a clear choice if fit and heat performance are top priorities.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExact fit for specified models:\u003c\/strong\u003e Designed to fit Weber Genesis 300 Series grills with front or side mount control knobs from the listed model years, providing a direct replacement without modification.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy cast iron construction:\u003c\/strong\u003e The thicker cast iron material retains heat and creates pronounced sear marks, helping to brown meat more evenly than thinner porcelain rod bars.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurability over porcelain:\u003c\/strong\u003e Cast iron does not chip or rust out like porcelain enameled rod bars, offering longer-lasting service when maintained properly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo-piece set dimensions:\u003c\/strong\u003e Each grate measures 19.5 x 12.9 in and the pair covers 19.5 x 25.8 in, matching the cooking surface area expected for Genesis 300 Series grills.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorks with other compatible grills:\u003c\/strong\u003e Besides listed Genesis models, these grates are noted to fit certain Pit Boss PB700 Series grills, expanding their usability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImproved cooking evenness:\u003c\/strong\u003e The extra mass of the grates heats and distributes temperature more evenly across the surface, reducing cold spots during searing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThese grates are ideal for owners of Weber Genesis 300 Series grills (Genesis E\/EP 310 \u0026amp; 320 from 2007-2016, Genesis S 310 and 320 in the listed years, and Genesis 330 variants) who want a durable cast iron replacement that sears better and holds heat longer. If the original rod-style bars are worn or you want a more professional sear, these grates deliver a tangible upgrade in cooking performance.\u003c\/p\u003e\n\u003cp\u003eCustomers with Genesis II 300 series or Genesis II LX 300 series should look elsewhere because these grates do not fit those newer models. Also, buyers who prefer low-maintenance porcelain-coated bars that never need seasoning should consider that cast iron requires periodic care to avoid rust.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFit: Many users report the grates fit older Genesis grills precisely, including very old units, making replacement straightforward.\u003c\/li\u003e\n\u003cli\u003eDurability: Thick cast iron construction resists chipping and feels sturdier than thin rod bars.\u003c\/li\u003e\n\u003cli\u003ePerformance: Heavier grates sear better and cook more evenly, improving grilling results.\u003c\/li\u003e\n\u003cli\u003eValue: Customers describe the build quality as comparable to original equipment, offering good value for replacement parts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWeight and maintenance: The grates are heavier than originals and require seasoning and care to prevent rust, which may not suit all users.\u003c\/li\u003e\n\u003cli\u003eCompatibility limits: They do not fit Genesis II 300 series or Genesis II LX models, so checking model fit is essential.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eCast iron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEach grate size\u003c\/td\u003e\n\u003ctd\u003e19.5 x 12.9 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCombined size (2 pcs)\u003c\/td\u003e\n\u003ctd\u003e19.5 x 25.8 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible models\u003c\/td\u003e\n\u003ctd\u003eGenesis E\/EP 310 \u0026amp; 320 (2007-2016), Genesis S 310 \u0026amp; 320 (listed years), Genesis 330 (2011-2016)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNot compatible with\u003c\/td\u003e\n\u003ctd\u003eGenesis II 300 series and Genesis II LX 300 series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight note\u003c\/td\u003e\n\u003ctd\u003eHeavier than original Weber rod bars for greater heat retention\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eFor owners of the specified Genesis 300 Series grills who want better searing and even heat, these cast iron grates are a practical and cost-effective replacement. They feel robust, fit the older models well, and improve grilling performance, though they add weight and require routine seasoning to avoid rust. Overall, they are a worthwhile upgrade when fit and cooking results matter most.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDo these grates fit my Genesis 300 grill?\u003c\/strong\u003e\u003cbr\u003eThey fit Genesis E\/EP 310 \u0026amp; 320 (2007-2016), Genesis S 310 (2007-2016) \u0026amp; 320 (2007-2010), and Genesis 330 (2011-2016); confirm your model before buying.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do cast iron grates compare to porcelain bars?\u003c\/strong\u003e\u003cbr\u003eCast iron holds heat and sears more effectively and is less prone to chipping, but it needs seasoning and maintenance to prevent rust.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill they fit Genesis II models?\u003c\/strong\u003e\u003cbr\u003eNo, these grates do NOT fit Genesis II 300 series or Genesis II LX 300 series models.\u003c\/p\u003e","brand":"HESTIA INDUSTRIAL INC","offers":[{"title":"Default Title","offer_id":48185952501979,"sku":"B0CG99WMJ8","price":59.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/81GNo6EuHnL._AC_SL1500.jpg?v=1769454237","url":"https:\/\/gearmusthave.com\/products\/genesis-cooking-grates-for-weber-genesis-300-series-cast-iron","provider":"GearMustHave","version":"1.0","type":"link"}