Matala Weighted Air Hose 5/8in dia. X per foot

Weighted tubing eliminates the need for weights or external anchors. Connect the Self-Weighted Air Tubing to your air-diffusers or air stones and everything will sink into place on its own. Installing your aeration diffusers has never been easier. Self-Weighted Air Tubing rests on the bottom out of the way and the black color makes it invisible from the surface so your pondscape stays natural. This tubing is more supple than most self-sinking lines, so it is easier to unroll and work with.