Feeding hole cover Fits Fluval Flex 57L 15G Aquarium fish tank. 

This item is 3D printed in Black colour, low profile, smooth finish.

If you like this hole cover in WHITE colour, please let me know in note for seller or contact me.

I have couple more improvements/upgrades listed, please check out.

Free UK delivery

Make sure you buy the right item for your tank. 57L cover is not the same as 34L cover