Factory built Whitfield/Lennox part number 16050246 Whitfield also identified this part in the past as ULTRA GRATE W/T DEFLECTOR,KIT (17150143)6 7/8" wide stainless steel replacement for 13 Bar Ultragrate. Aftermarket alternatives for this part are available as 16-1010-WHS-EPP  and PP2008-PSP, both aftermarket versions are considered superior for durability. Some models may require modifications. Download the PARTS LIST for your STOVE MODEL to confirm correct replacement grate. Fits the following Whitfield Pellet Stoves: -Advantage Plus-Cascade -Quest Plus with 6 7/8" wide grate slot