De Wet Barry is positive abut his move to the capital:
"I have thoroughly enjoyed my career in South Africa, but I am now looking forward to getting to know my new team mates at Harlequins and to the new and exciting challenges ahead
"I was fortunate to be at the Twickenham Stoop on Saturday to watch the boys beat London Wasps. It was a very good win and I thought the atmosphere was tremendous."
Harlequins Director of Rugby, Dean Richards said, "I am delighted that De Wet is now here at Harlequins and we are looking forward to seeing him in action on the pitch very soon".
De Wet is eligible to start his Harlequins career this weekend in the EDF Energy Cup match away to London Irish.