A Whirlpool microwave trim kit makes it possible to install Whirlpool microwaves into an existing opening in kitchen cabinets, freeing up counter space. Whirlpool microwave trim kits come in 27-inch and 30-inch stainless steel models.
A Whirlpool 30-inch stainless steel microwave trim kit is available from Whirlpool.com for $120.99 or HomeDepot.com for $129 as of March 2015. This product comes with all of the hardware needed for standard installation as well as a limited one-year manufacturers warranty. Whirlpool microwave trim kits are compatible with select Whirlpool and KitchenAid brand counter-top microwaves of the proper size. See the manufacturers care manual to ensure compatibility before making a purchase.