Rhyl climbed up to seventh in the table following Sunday's comfortable 3-0 win at Afan Lido, who had Luke Borrelli sent-off just before half-time.
Lido started well, but were unable to beat Alex Ramsay in the Lilywhites goal and they paid the price when Jason Oswell beat Matthew Rees for pace before crossing for Dave Forbes to poke home in the 37th minute.
On the stroke of half-time, things were made a lot harder for the hosts as Borrelli saw red. Mark Cadwallader had fouled Borrelli, but the winger reacted by headbutting Cadwallader and he was shown the red card.
After the break, a Ryan Batley handball meant that referee Mark Whitby pointed to the penalty spot, which sub Steve Lewis converted to double the visitors advantage.
Lido's best chance the halve the deficit came as Rameer Outlaw had a one-on-one, but Ramsay blocked his effort. Rhyl's third and final goal then came from another sub Jon Bathurst, who powered home a half volley from a corner.