Marina Air Check Valve, 1/4" reflective-and-greenhouse-films While Technaflora's original formulation is

While Technaflora's original formulation is among the strongest cloning gels on the market

Reduces damage from ground-rot

In this tray sits a stand covered by a sheet of absorbent cloth that draws water up and into the bottoms of the planted seed trays by capillary action

It therefore manages to transform our secret blend of essential oils into volatile particles which are capable of neutralizing septic odors

Marina Air Check Valve, 1/4" reflective-and-greenhouse-films While Technaflora's original formulation isThe Marina Check Valve prevents water from siphoning through the air hose and into the air pump in the event of a power failure or when removing filters and other air driven accessories.