accordion pipe or just drill out what's left of the nipple and install a barb fitting. That or buy used, there are plenty floating around with so many people going planar inlet piping. I know I have at least one set possibly 2-3 but I want to keep one set for sure if shit every hits the fan and I get sent to the referee.
If you can't find one from someone else and I have more than one you can have it for the cost of shipping.