Information
Primo Oval LG 300 Firebox (Replacement Part)
This is the genuine ceramic firebox replacement for the Primo Oval LG 300. While Primo ceramics are top-tier quality, accidents can happen, or years of extreme use may cause wear. This replacement part swaps out your old insert and restores your grill to "like-new" performance. It is designed to withstand extreme heat and acts as the heart of the grill's heat distribution system.
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✔ Genuine Primo Part
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✔ Fits Oval LG 300
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✔ Divider Plate Slot
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✔ Premium Ceramic
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The firebox comes ready with the characteristic slot in the center. This is essential for using the Primo Cast Iron Firebox Divider, which allows you to split the charcoal for true 2-zone cooking (direct and indirect heat simultaneously). It also features a cutout at the bottom for optimal airflow from the draft door.
Before inserting the new firebox, make sure to vacuum or remove all old ash from the bottom of the grill body. Once the new box is in place, ensure the air intake at the bottom of the box aligns with the grill's draft door for maximum airflow.
Features
- ✔ Perfect Fit: Tailor-made for the Oval LG 300, no adjustments needed.
- ✔ Thermal Mass: Thick ceramic that retains heat and ensures stable grilling temperatures.
- ✔ 2-Zone Ready: Features the necessary slot to use the divider plate.
Specifications
| Brand | Primo Ceramic Grills |
| Compatibility | Primo Oval LG 300 (Large) Only |
| Material | Unglazed Ceramic |
| Included | 1 x Firebox (without grate/divider) |
FAQ
Does this fit the XL 400?
No, this fits the Large model (LG 300) only. The XL 400 requires a larger firebox.
Why does a firebox crack?
It usually happens due to thermal shock (rapid heating in freezing temperatures) or physical impact. A crack doesn't always mean it needs replacement – it can often be used for a long time as long as it holds its shape.
