Ona Pro Gel -- 5 Gallon Lost Coast Plant Therapy for example - a float

for example - a float switch or a greenhouse alarm system

An ideal balance between small and large pores in the stone wool of the plug ensures an optimum air-to-water ratio

1x 2Pot tray & lid

Outside Dimensions: 48" x 14

and opening the lid to check sets it back

Ona Pro Gel -- 5 Gallon Lost Coast Plant Therapy for example - a floatThese are products for professionals and are now available for you. The first product in this series is ONA PRO Gel. As Ona constantly strives to improve our products, they have developed a formulation that takes control to a new level. ONA PRO Gel is as close to odorless. Although it has a slight scent when sniffed in the container, the final result when working on powerful, odors is simply a clean, fresh smell period.