Well I couldn't find any locally and I wanted to set the tank up this weekend so mail order was out of the question. I ended up picking up some 1/2" vinyl tubing and some 1/4" vinyl tubing and I'm just going to punch holes and install the 1/4" tubing into the 1/2" tubing. I may even smear some silicone around it to ensure I seal but I don't think it will be necessary. Total cost: about 3 bucks.
You can purshase at Ewing1.com or at any Ewing Irrigation Location from California to Florida, I manage a location in Utah... The octabubbler has 8 discharge points the quadrabubbler has 4, aval. in varying gallons per hour. both have 1/2" female pipe threads on inlet.