Broil King Regal S 420 Pro review

The Regal S 420 Pro is built for buyers who want a grill to last. Broil King lists it at $1,299.00 for propane and $1,359.00 for natural gas. Four stainless steel Dual-Tube burners give 50,000 BTU of main burner output over 500 sq in of primary space, with 695 sq in in total including the warming racks. The cookbox is 304 stainless steel with cast aluminum end caps, the lid and doors are stainless, and the side shelves are 304 stainless with tool hooks. Under the reversible stainless grids, the Flav-R-Wave system vaporizes drippings to cut flare-ups. Linear-flow valves turn through 180° for finer heat control, and the blue LED knobs and two COB light strips help after sunset. The warranty is the strongest here alongside Napoleon's Prestige: a Limited Lifetime warranty on the cook box and 15 years on the remaining parts and paint. The catch is price, and the propane variant showed as unavailable on the product page when we checked, so ask a dealer.

Who it is for

buyers who want stainless construction and long warranty coverage

Price

$1,299.00 for propane and $1,359.00 for natural gas on Broil King's US site.

Regal™ S 420 Pro $1,299.00 Propane
Quoted from the vendor pricing page on November 13, 2026.

Key features

• Four stainless steel Dual-Tube burners with 50,000 BTU main output
• 500 sq in primary and 695 sq in total cooking space
• 304 stainless steel cookbox and Flav-R-Wave cooking system
• Reversible stainless steel grids and Linear-flow valves with 180° control
• Blue LED-lit knobs, two COB light strips and a pull-out propane tank drawer

Strengths and weaknesses

• Strength: Limited Lifetime cook box warranty plus 15 years on remaining parts and paint
• Strength: Stainless steel cookbox, lid, doors and side shelves
• Strength: Built-in lights and lit knobs for cooking after dark
• Weakness: $1,299.00 is more than double the Weber Spirit E-325
• Weakness: The propane variant showed as sold out or unavailable on the product page on November 13, 2026
• Weakness: No side burner on this model; the S 490 Pro Infrared adds one for $1,699.00

Key facts

• Main burner output: 50,000 BTU
• Cooking area: 500 sq in primary, 695 sq in total
• Cookbox: 304 stainless steel with cast aluminum end caps
• Ignition: Sure-Lite electronic
• Warranty: Limited Lifetime cook box, 15 years on other parts and paint

Where it ranks

Broil King Regal S 420 Pro is No. 5 in our Best Gas Grills verdict.