I just ordered a 36" reptisun tube and the company wanted $90 for the fixture, so I phoned home depot and they carry the T8 fixture/ballast for $25 bucks and depending on size are in stock! Home depots are everywhere too Good luck! I wish this bulb wasn't so hard to find!
I got one today 35.00 at rona... today. Home depot had them but they were direct wire and not plug in... same with lowes.. walmart does not have them in my area either.. they only have leds...which won't hold the t8 tube.
I found the under-the-counter ones at home depot that are plug in with a switch on the side, $12 for the 18" as a price reference. Will probably buy one of those. The only deal is it has one of those plastic lamp cover things on it, but it just clips off easy.
I saw those today too. But I have a 100 g viv! I'd need two or three of those .... I wish they had them bigger than 22 in in there but they don't here. And will not order a longer one but rona had it in end of stock. It seems they are trying to phase the larger ones out for l.e.d.s
I know they had bigger than 18, I thought I saw bigger than 22 also.. I know they had ones that were more expensive that went really big but you might be right. This'll bother me until I go back there on monday to check, lol.