Models View all Tri-clamp reducer 6" x 4" 2 128 0 Tri-clamp End Caps 1/2" to 6" 6 245 0 Tri-clamp reducer 4"x2" 5 102 2 Eccentric Tri-clamp reducer 6"x4" 3 81 0 Tri-clamp Concentric Reducer 3"x1.5" 316L Stainless Steel 2 76 0 Tri-clamp Concentric Reducer 3"x2.5" 316L Stainless Steel 3 75 0