FloraFlex T 1/4 in 4 GPH Long Plunge Drippers (1=6/Bag) Use the "T" 1/4 inch Long Plunge Drippers with Drip Shields or utilize them as stand-alone drippers Deliver water and nutrients straight to the root zone of your plants with the subsurface design, which allows the drops to fall 3/4 inch below the surface and dispense out of the three slots at its bottom Eliminates algae & use of pesticides by keeping the top of the media dry