We have them coming direct from Kanger - all five colors. We have a large shipment from Kanger in all five colors of the complete kits then we also have spares. Spoke to Kanger tonight and they themselves told me they will have the colored tubes and will ship them in next day or so. This is besides what we should receive of the clears today.
I am going to put them up as soon as I have them in hand, when our delivery truck comes in. I will not do a detailed product page until later so as not to delay putting them up...so everyone be on the lookout sometime even possibly before noon.
Got to the page in the OP and put a Back In Stock Notify so you get the email alert as soon as I put numbers in stock....
I've only seen the replacement glass tubes in 5 colors, one place had a set of them