+3 Clear Duplex Round Bulge Chimney - 2 1/2" Fitter; 12" High; 3 1/2" Bulge GC-57934 $36.00 In stock Quantity: 1 Add to Bag Product Details 2 1/2" Fitter; 12" High; 3 1/2" BulgeFits duplex burners. Save this product for later Favorite