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Old February 20, 2014   #4
JamesL
Tomatovillian™
 
Join Date: Nov 2011
Location: Long Island NY
Posts: 1,992
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Greentrees sells double and quad thick trays. I get a lot of use out of the quads. They can take a lot of weight.
http://www.hydroponics.net/i/138759

Check locally at a hydro shop as well.
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