Balboa Vico 2.0 HP Ultima Wet End [2"] [Center Side] (1215132) topsides Correct matching is important because Correct matching is important because the wet end should restore the pump’s original feel and plumbing relationship rather than leaving the owner with a repair that only partly fits the system The Laser 160L after 2003 fit and quantity of eight format give this set practical value because sand filter internals work best when they match the original model generation and quantity relationship closely which is why correct matching matters so much A complete wet end can make a big difference when a pump’s water moving side has reached the point where piecemeal repairs no longer feel worthwhile