Leship 18.75 in Cast Iron Grates for Weber Genesis II 300 Series

In this review the Leship 18.75 in cast iron grates are evaluated as a direct replacement option for owners of Weber Genesis II 300 and II LX 300 series grills from 2017 and newer. The set of two heavy duty grates stands out for its heat retention and searing ability, so the single biggest reason to buy is the improved steak sear and even heat distribution compared with thinner or porcelain-coated alternatives. For anyone who wants durable cast iron cooking surfaces that fit specified Genesis II models, these grates deliver a noticeable upgrade.

Key Features

• Exact fit: Each grate measures 18.75 in x 13.25 in so the two-grate set fills the 18.75 in x 26.5 in cooking area for compatible Genesis II 300 models without modification.
• Cast iron construction: Heavy duty cast iron retains heat superbly and creates prominent sear marks on meats for restaurant-style finishes.
• Even heat distribution: Cast iron spreads and holds heat better than thinner materials, reducing hot and cold spots across the grate surface.
• Durability: More resistant to wear than porcelain-coated grates that can crack or flake, offering long-term service when maintained properly.
• Model compatibility: Designed to fit many Genesis II 300 and II LX 300 variants including E-310, S-310, SE-310, E-315, E-325, E-330, S-335 and related models from 2017 onward.
• Replacement value: Sold as a matched pair so both halves of the grill cooking surface are upgraded at once for consistent cooking performance.

Who It's For

These grates are best for owners of Weber Genesis II 300 series grills (2017-current) who want a durable cast iron replacement that improves searing and heat retention. Home cooks who regularly grill steaks, burgers or other proteins and who appreciate heavy, heat-storing grates will find the Leship set a direct practical upgrade.

They are not for owners of earlier Genesis models where the grill panel shows only GENESIS (model years 2007-2016) or for people who prefer non-stick porcelain-coated surfaces; those users should confirm compatibility or consider alternative grate styles if they need a porcelain finish.

Pros & Cons

Pros

• Heavy cast iron builds even heat and outstanding sear marks on meats.
• Exact two-piece dimensions match the Genesis II 300 cooking area for a straightforward swap.
• More durable over time compared with porcelain-coated alternatives that can chip or crack.

Cons

• Cast iron requires regular maintenance to prevent surface rust, which some users report if left unseasoned.

Specifications

Brand	Leship
Set	2 cast iron cooking grates
Each grate dimensions	18.75 in x 13.25 in
Total coverage	18.75 in x 26.5 in (two units)
Compatible grills	Weber Genesis II 300 / II LX 300 series (2017 and newer)
Typical benefits	Superior heat retention and prominent sear marks

Our Verdict

The Leship 18.75 in cast iron grate set is a practical, value-minded replacement for compatible Genesis II 300 series owners who want better searing and more even heat. Its heavy cast iron construction makes it a durable choice if you are willing to season and maintain the grates to avoid rust; for those needs it is a worthwhile upgrade that improves cooking results across the full grill surface.

Frequently Asked Questions

Will these grates fit my Genesis II 300 grill?
They fit Weber Genesis II 300 and II LX 300 series models from 2017 onward; confirm your grill shows GENESIS II (model year 2017-current) before purchasing.

Are these porcelain-coated or plain cast iron?
They are heavy duty cast iron, not porcelain-coated, which improves heat retention but requires seasoning and care to prevent rust.

Do the two grates cover the full cooking area?
Yes, each grate is 18.75 in x 13.25 in and the pair covers approximately 18.75 in x 26.5 in of cooking surface.