The tickets will be available online from Ticketmaster and via telephone on 08705 582 582.
Click here for Wales v Italy
Fans have already enjoyed unprecedented access to the matches with the WRU's new ticketing policy ensuring returns from member clubs and debenture holders are put on public sale early.
Last month a total of 13,500 tickets for the three matches sold out within hours of going on sale and all three matches are on course to reach sell-out status with Scotland and France topping 65,000 sales to date and Italy weighing in with 45,000.
'This is likely to be the last chance to buy tickets and fans are encouraged to utilise both methods of purchase in order to avoid disappointment,' said WRU commercial manager Gwyn Thomas.
'Tickets priced at Â£36 and Â£42 will be available from the hotline 08705 582 582 and the website www.wru.co.uk from 9am.'
The fixtures for which tickets are available are Wales versus Scotland 14th February, Wales versus France 7th March and Wales versus Italy 27th March 2004, at the 74,000 capacity Millennium Stadium.