Uniflasy Weber Genesis II 300 Replacement Flavorizer Bars & Heat Deflectors — SUS304 Stainless, 5 Bars/3 Deflectors

Uniflasy replacement kit supplies five stainless flavorizer bars and three heat deflectors engineered to restore even heat and protect burners on Weber Genesis II 300-series grills.

If your Weber Genesis II 300 or Genesis II LX 300 grill has warped, rusted, or missing flavorizer bars or heat deflectors, this Uniflasy kit gives you the compatible stainless-steel parts needed to bring cooking performance back to factory levels. Designed for 2017-and-newer Genesis II 300 models (including E-310, E-315, E-330, E-335, S-310, S-335 and S/E-340), the set replaces common Weber part numbers such as 66032, 66795, 66040 and 66685. The kit combines heavier-gauge construction with corrosion-resistant SUS304 stainless for longer life, easier cleaning, and consistent heat across the grate.

Will these parts fit my Genesis II 300-series grill?

These bars and deflectors were made specifically for Weber Genesis II 300 and Genesis II LX 300 Series units produced from 2017 onward. They match the typical sizes for those models, but you should confirm measurements against your original parts before installing.

• Compatible with E-310, E-315, E-330, E-335, S-310, S-335, S/E-340 and similar 300-series variants.
• Replaces Weber part numbers 66032, 66795, 66040 and 66685.
• Verify original component lengths and mounting style prior to purchase.

How are these Uniflasy bars and deflectors different from porcelain-coated replacements?

Uniflasy uses SUS304 stainless steel rather than porcelain-coated metal. Stainless resists chipping and peeling under repeated high-heat cycles, so the surfaces stay intact and corrosion-resistant even after prolonged use.

• Solid SUS304 stainless construction for high-temperature stability and rust resistance.
• Non-magnetic finish that won't flake like porcelain enamel.
• Smoother surface cleans faster and doesn't hide corrosion beneath cracks.

What size and quantity are included in the kit?

This kit supplies the typical array needed for a full refresh of the 300-series cooking area: five flavorizer bars and three heat deflectors sized to match Genesis II 300 layouts. Each piece is sized to align with the burners and grate layout for even coverage.

• Five flavorizer bars: 17 1/8" long x 3" deep x 2 1/8" high.
• Three heat deflectors: 12 1/2" long x 4 1/4" deep.
• One kit replaces multiple worn or damaged components at once.

Will heavier gauge material change cooking or maintenance?

Yes — the 17-gauge stainless bars are thicker than many aftermarket options, which helps resist warping and burn-through. That sturdier profile promotes consistent heat across the grates while vaporizing drippings to preserve grilled flavor; maintenance is simple thanks to the smooth stainless surface.

• 17GA heavy-duty bars resist deformation under repeated heating.
• Promotes steady flame patterns and improved heat distribution.
• Wipes clean easily and requires less careful handling than coated parts.

Who is this for: This Uniflasy replacement kit suits grill owners who need durable, corrosion-resistant flavorizer bars and heat deflectors for 2017+ Weber Genesis II 300-series models. It’s a practical upgrade for anyone replacing chipped or rusted porcelain-coated parts, restoring even heat, protecting burners from grease, and simplifying cleanup so the grill performs reliably season after season.