Buy one test tube, get 30% off a cannister!

Must make a purchase. Limit one coupon per purchase. Valid from 12:00 am, April 1, 2017 to 11:59 pm, April 30, 2017. Redeemable once. Cannot be duplicated in any way. Not valid with any other offer. Facsimiles prohibited.

Expires: April 30, 2017