Hydrofarm Jump Start Smart Float Grow Tray with Plugs block-return-exchange turn the knurled ring on

turn the knurled ring on the plunger turn to the left and slide it so the side nearest the barrel is at the prescribed weight marking

Treated with Powerfresh

Size:  2 Foot/24 Watt

Add a tie down to your canyon rose tack

Size:  3/4"W

Hydrofarm Jump Start Smart Float Grow Tray with Plugs block-return-exchange turn the knurled ring onComes with a 55 cell floating insert, heavy duty tray, and 55 earth friendly quick start plugs. Provides an ideal air to water ratio. Perfect for starting seeds or cuttings. Works great with hydrofarm domes to create a mini greenhouse. Plug refills available (sold separately) to ensure you never have to buy more equipment. Gives plants the best starts possible.