Changes made to the stem, seat retainer assembly, and stem guide of A3213D & DT provide improved performance and longer service life. For all details see: A3213D and A3213DT 3″ Internal Valve
Changes made to the stem, seat retainer assembly, and stem guide of A3213D & DT provide improved performance and longer service life. For all details see: A3213D and A3213DT 3″ Internal Valve