3D Neptune Trident Bottle Tube Guide 3 pack Goni Allows more flexibility in adjusting

Allows more flexibility in adjusting the water level in your tank without the stock magnetic holder bumping into the plastic rim

Very dark royal blue/purple with large very bright green glitter

6 Hole up to 1/4" outside diameter tubing

Will work on rimless and plastic rimmed tanks with rim up to 1 1/2" wide and tank walls 1/8" thick and up

mouth teal blue

3D Neptune Trident Bottle Tube Guide 3 pack Goni Allows more flexibility in adjusting3D printed guides for Neptune reagent bottles. Inserts into the cap of your Trident reagent bottle lids and keeps the sample tube perfectly vertical. Prevents the tube from going askew and pulling in air when reagent is low and giving false readings. Wider opening at the top to accommodate the rubber tubing metal tube, with a narrower opening at the bottom to secure the metal tube. Vent hole at the top to allow air into the bottle as reagent is drawn