Tasman will certainly need to improve on today's performance if they wish to advance to the showpiece game in provincial rugby. It was all one-way traffic in the first half, even if Tasman somehow headed to the break three points to the good.
Counties spent much of the first 20 minutes on attack but emerged with nothing to show for the supremacy, falling behind on the scoreboard through three Rohan Saifoloi penalties.
Pauliasi Manu finally gave the Steelers just reward for their pressure but, having enjoyed almost three quarters of possession, the visitors headed to the sheds down 9-7.
Tasman finally sparked to life in the second spell, with Robbie Malneek scoring a spectacular solo try, but Counties were still the better side and hit the front through Sam Henwood and Jordan Taufua.
That left the game to be decided on a goal-line stand and left Tasman with a tricky match-up next weekend.
spending 13 minutes in the opposition 22 compared to Tasman's one minute.
Tasman 16 (Malneek try; Saifoloi 3 pens, Banks con)
Counties-Manukau 21 (Manu, Stanley, Taufua tries; Tuala con, Stanley 2 cons)
HT: 9-7