Logee's has them at a steep price. E-bay occasionally. Lyndon has them for a low price. Glasshouse Works has them for a low price as well.

There may be a minimum purchase though and shipping can add quite a bit to the price. If you can find them locally you would be a lot better off. Good luck.

Logee's
http://logees.com/prodinfo.asp?number=B3224-4

Lyndon Lyon
http://www.lyndonlyon.com/Comp%20Plant%20List%20Rex%20B.html

GlassHouse Works
http://www.glasshouseworks.com/trop-b.html

Butch

THANKS