DaVinci Screen Pack
Buy cheap, but twice
What DaVinci say:
This screen replacement set comes with  large screens for the bottom chamber and  small screens for the upper chamber. The screens can be easily removed and replaced with new ones or cleaned with isopropyl alcohol and reused.
What Forbidden Fruitz say:
This is a set of replacement screens designed specifically for the DaVinci Standard Vaporizer.
Genuine DaVinci product
Quick efficient service with free postage!!!...the only sight I could find that was not US based and therefore don't charge stupid money for shipping a product that's tiny and weightless....nice one Forbidden Fruitz!!