Syringe Adapter for Seachem Bottles

thingiverse

Made specifically to complement Seachem bottles, this design fits seamlessly beneath their original lid. The hole for the syringe is carefully tapered to accommodate various syringes in use. Using TPU was crucial as it allows the fit to be extremely tight against both the bottle and the syringe, making it a very snug match. Although I'm unsure how well it would perform with any other material, this combination seems to work perfectly.