Models View all Tri-clamp reducer 6" x 4" 2 100 0 Tri-clamp End Caps 1/2" to 6" 6 164 0 Tri-clamp reducer 4"x2" 5 73 1 Eccentric Tri-clamp reducer 6"x4" 3 62 0 Tri-clamp Concentric Reducer 3"x1.5" 316L Stainless Steel 2 61 0 Tri-clamp Concentric Reducer 3"x2.5" 316L Stainless Steel 3 58 0