Test Tube opening can measure: 14.1 mm (9/16 inch) with the soft silicone fittings it can hold test tubes with 13 to 14 mm inside diameter // or 15 mm (5/8 inch) with the soft silicone fittings it can hold test tubes with 14 to 15 mm inside diameter.
Connection openings for vinyl tubing can measure 9.5 mm (3/8 inch) or 12.7 mm (1/2 inch)
Material: Made with sturdy ABS plastic or PLA PRO
Weight (all parts) and Dimensions (the biggest piece):
Two test Tube Port: 20 grams, 20 x 57.5 x 24 mm
Three Test Tube Port: 25 grams, 20 x 76.5 x 24 mm
Four Test Tube Port: 30 grams, 20 x 95.5 x 24 mm
These test tube ports make it very easy to expand the capabilities of test tubes within the ant keeping hobby. A simple example, the 2 port option is perfect for test tube transfers, or that initial expansion a new colony needs without connecting a big nest, giving too much space is often the number one mistake we make when starting.
The Port is designed to have as little empty space within its tunnels to avoid ants using it as a chamber, encouraging them to keep the port clean so it is only used for traffic.
The Port aligns perfectly to the back hole opening of our out-worlds, you can skip the hose between them by gluing it directly on the back with a tiny bit of fish tank safe silicone, this allows you to use the entire inside diameter.
We use this test tube port on our Test Tube Array Formicarium, but we also have the part itself available for the DIYer, they fit all of our test tubes to perfection, it is expandable and your imagination is the limit.
Includes, test tube port with rear stand, silicone fittings for each tube, an entrance plug and 5 cm of vinyl tubing.