Thank you for your interest in our products:
Rhizopon AA #1, Rhizopon AA #2 & Rhizopon AA #3
and Hortus IBA Water Soluble Salts

We fully support your most important plant rooting trials.

We have available Trial Sizes (the smallest trial package sizes are marked in bold):
Rhizopon AA #1, Rhizopon AA #2 and Rhizopon AA #3 are available in one pound containers, as well as 25 pound boxes.
Hortus IBA Water Soluble Salts are available in 100 gram, 250 gram and one kilo packages

The answer to your basic question, "How do I receive Trial Samples?"
As much as we would like, we can not supply 'Trial Samples'; stock is at our Distributors. 

Trial Sizes are available for PURCHASE through your favorite horticultural supplier:
See the DISTRIBUTOR LIST

Buy Hortus IBA Water Soluble Salts. Purchase direct, or ask your local supplier to order from Master Distributor Griffin Greenhouse Supplies 800-888-0054 hortusiba@griffinmail.com
https://www.griffins.com