P4G-881 was a primordial planet in the Milky Way galaxy in which Stargate Command sent the Orb of organisms from P5C-353 to as a new home for them. The world is without intelligent life but also rich in oxygen, making it ideal for habitation by rampant organisms. SG-1 sent the Orb, and the A't'trr within it, to this planet as a replacement on the guarantee that it would not devour Earth. (SG1: "Message in a Bottle")