350, 350A 2½”-12”. Modification Overview Production of the 2½ - 10” sizes began in 1998. Production of the “A” models began in 2004. This Indicates.
475, 475V 2½”-3”
475, 475V, 475XL 4”-10”
475, 475V 2½”-3”. Modification Overview Production of the 2½ - 3” sizes began in 1998. The lead free version (XL) was introduced in 2011.
350DA, 350ADA 2½”-10”. Modification Overview Production of the 2½ - 10” sizes began in 1998. The 350DA and 350ADA use a ¾” 950XLD as the bypass assembly.
