Full Size Griddle Insert for Napoleon Prestige PRO 500 & Built-in Prestige 500 Grills Accessories, BIP500RBNSS-3 P500RBPSS P500RSIBNK-3 P500 P500N Parts, 26.3"L x 17.7"W Stainless Steel Griddle Plate

So I bought this one from Amazon bc I had never had a flat top before and I thought I’d just try it first. So far so good, I really have no problem with it. It is kind of difficult to store being as large as it is. The grease holes in the back work well and I don’t notice flare ups too often. I’ll probably move on to Napoleons official version for the 525 at some point but this isn’t a bad way to start. https://www.amazon.com/dp/B0FQT65KZ7/ref=sspa_mw_detail_6?ie=UTF8&psc=1&sp_csd=d2lkZ2V0TmFtZT1zcF9waG9uZV9kZXRhaWw