The E-8 Model E-Cigarette – aka the KR808-D1
The E-8 model is very similar to the E-9 but has slightly smaller threads (8mm). It is one of the lightest and smallest e-cigarettes on the market. If you want parts for an E-8 or the compatible KR808-D1, visit V2 Cigs.
The E-9 Style E-Cigarette Model – aka the KR808-D2
The KR808-D2 is a great electronic cigarette for those wanting a 2 piece e-cigarette (using cartomizers) that looks similar to a traditional tobacco cigarette. If you are looking for parts or cartridges for the E-9 style, visit Green Smoke USA or Green Smoke UK.
Model 510 and eGo Series E-Cigarettes
The 510 and eGo model e-cigarettes are some of the best. The main manufacture is Joyetech which has a great reputation in the industry. In Canada, you can get the Aurora E-Cigarette (compatible with the Joyetech 510) or the Joyetech eGo-T. In the USA, visit Dragonfly Ecigs.
If you are looking for adapters to make different cartridges and cartomizers work with different batteries, visit V2 Cig Adapters.
For more information on e-cigarette model compatibility, visit the e-cigarette-wiki.