http://interiorgardenservices.com
http://www.primescapeproducts.com/downloads/pdfs/2011_supply_web_LR.pdf
this is the primescape catalog of products, several brands (pages 19 through 21 are sub irrigation containers)
http://www.primescapeproducts.com
provider of decorative containers and supplies for interior landscapes
http://www.newprocontainers.com/accessories/sub-irrigation.html
sub irrigation supplies