These are holders designed to take standard 1/4″ tubing bulkheads and mount on a tank rim (rimmed or rimless). Depending on your selection, there are versions for both rimless and rimmed tanks. These are a more elegant solution to the plain tubing holders offered. The bulkhead opening is 18mm diameter allowing for easy installation. The rimless version has a rim mount slot of 15mm and the rimmed version has a slot of 31mm. Both holders are threaded on the inside and giving you the option to secure the holder either way. If your sump doesn’t have bulkheads or openings for them, this is the way to go.

  • Printed out of PLA.
  • Compatible with both rimless and rimmed tanks (depending on selection).

If no color is specified in the order note, a black one will be sent out by default.
Bulkheads are shown for reference and are not included. If you want them, please message me and we can arrange a deal.

Check my other listings for 3D printed reefing equipment. I will accept reasonable offers for multiple things bought from me.


Please note that these are 3D printed parts. That means that the surface finish quality of the part will not be directly comparable to an injection molded part. Although not very common, there might be small surface finish defects, or rough spots. The goal is to have a fully functional, as described part. This disadvantage to 3D printing is reflected on my pricing as well. Polished surface finishes, is definitely something that can be achieved to a certain degree with 3D printed parts, but it's a time consuming process, something that definitely cannot be offered for the price range my products go for.

If you have a color preference please make sure to put it on the "note to seller" field during checkout. If you do not do that, I will use the default black color and I may not be able to honor any request you have after your payment is complete.