The twin towers of Danielle Quigley and Imogen Francis proved too powerful at the net, with the various blocking schemes employed by Tauranga having only limited impact on their effectiveness.
It was the fourth time the two teams had met this season, with Tauranga winning only once.
Tauranga had earlier beaten Mauao Blues 3-0 in the semifinal.
Mauao Red - the local hope in the men's draw - were knocked out in the semifinal by eventual champions Richmond Mall Nelson Pines.
National Club Championships
Finals:
1st Division Men: Richmond Mall Nelson Pine b Harbour Raiders A 3-1 (25-23, 25-22, 15-25, 25-19).
1st Division Women: Harbour Raiders b Tauranga A 3-0 (25-23, 25-22, 25-13).
2nd Division Men: Hamilton b Auckland Central 3-0 (25-18, 25-22, 25-20).
2nd Division Women: Auckland Central b South Auckland 3-0 (25-16, 25-10, 25-15).
Semifinals:
Men's Division 1: Richmond Mall Nelson Pines b Mauao Reds (Tauranga) 3-0 (27-25, 25-19, 25-19); Harbour Raiders A b Playaz (Auckland) 3-2 (23-25, 25-18, 25-22, 23-25, 15-7).
Women's Division 1: Harbour Raiders b Eagles (Wellington) 3-1 (22-25, 25-18, 25-13, 25-5); Tauranga A b Mauao Blues 3-0 (25-22,25-21,25-13).
Men's Division 2: Hamilton b Rotovegas 3-0 (25-21, 25-22, 25-22); Auckland Central b Scorpion (Dunedin) 3-0 (25-14, 25-22, 25-21).
Women's Division 2: Auckland Central b East Coast Thunder (Auckland) 3-1 (25-17, 25-19, 15-25, 25-21); South Auckland b Manukau South 3-1 (17-25, 25-21, 25-16, 25-15).