pond boss SKOIA Koi Spitter, Antique Durable resin, stone finish Aerates water to provide a healthy environment for fish and plants to thrive Decorates pond Fits 1/2 in. ID tubing (tubing not included) Fits pumps (pumps not included): PF75, PF140, PF185AS, PF185ASL, PF300, PF420AS, PF420ASL