How about this PTI V2 RDA Clone w/ Conversion Cap?

PTI V2 RDA Rebuildable Dripping Atomizer Clone w/ Conversion Cap -Black $8.99
The PRI V2 Clone RDA is with new 24mm Conversion cap. This Cap will increase the already fantastic flavor from the RDA. The new cap is with air slits instead of air holes in the old cap.

PTI V2 RDA Rebuildable Dripping Atomizer Clone w/ Conversion Cap -Blue

PTI V2 RDA Rebuildable Dripping Atomizer Clone w/ Conversion Cap -Red