Glass Round Media Bottles, 4PCS of Vol.100ml Borosilicate Glass Reagent Storage Bottle with GL45 Screw Cap, IN-RB100A

these are great

I use these glass bottles they have the measurements right on the bottle, they’re pretty heavy and even if I knock it over the bottle won’t leak! Comes in a six pack which is great so I always have a clean set. I recently went on a trip and used my special Xywav travel case (complete with plastic Rx bottles that come with the Xywav) and found them to be incredibly frustrating. Plus- there’s no measurement on those plastic bottles for measuring the water! I did pre-measure (using my glass bottle) water into each and drew a sharpie line. The plastic pill bottles are just STUPID.