BioTek Marine Coraline Frag Plugs – Available in 30, 100 and 1000 packs. The mounting surface is .75″.
The BioTek Marine Zen Reef type frag plugs are a little smaller in diameter than the standard sized BioTek Marine frag plugs, making them perfect for use with the Zen Reef racks but they can be used in just about any type of frag rack or frag rock. The regular sized frag plugs are slightly larger than these and they will not fit front to back and side to side in smaller spaced racks.
Available in 3 colors:
The 30 pack is packaged in retail packaging and the 100 and 1000 pack are packed in bulk packaging.