+3 Duplex-Oval Bulge Chimney - 2 1/2" Fitter; 10" High; 3 1/2" Bulge GC-57938 $38.00 In stock Quantity: 1 Add to Bag Product Details 2 1/2" Fitter; 10" High; 3 1/2" BulgeFits Duplex Burners and has a special oval shaped bulge. Save this product for later Favorite