I purchased a GE PES7227SL5SS to replace an older model. The existing trim doesn't fit. Which one do I need?

Hey there - we’re glad you reached out. The PES7227SL5SS model is for countertop installations only and cannot be built-in. Built-in trim kits will not work with the PES model because it will bind in the corner in the hinge side. The PEB7227ANDD model is built-in compatible and would make a great replacement for your prior model: https://www.lowes.com/pd/GE-2-2-cu-ft-1100-Countertop-Microwave-Gray/1000862192 -- The matching trim kits for 30” cabinets are as follows: JX7230BLTS (Black Stainless), JX7230FMDS (Black Slate), JX7230SLSS (Stainless steel), JX7230ELES (Slate). We hope this is helpful and please reach out if there is anything else we can assist with. Take care. Lauren@GEA