1/2 x 1 1/2 x 1/2, Male Pipe Thread Inline Stake Heads, Used for installing shrub or drip collectors, Great for drip areas, shrub & lawn above ground irrigation, Universal, Works with most common sizes of 1/2" drip tubing, .690 & .710, When you want to deliver water to your drip system via an above-ground garden hose, these heavy duty stakes are the ideal support for a drip manifold.