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Containers

Closures and fitments

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The fitment follows the dose, and a dosed product is harder than a poured one.

The dropper, for anything dosed by drop

Forty dropper assemblies on the glass shelf. A bulb, a pipette and a cap, and the bulb is the part that hardens in contact with an oil. For a measured dose onto an animal it is the only sensible fitment.

And graduation matters more here than usual

Dosing is by animal weight, so a pipette with usable markings is worth specifying rather than accepting. An owner estimating drops for a small dog is the failure mode a graduated pipette removes.

The lotion pump, for a pourable liquid

Thirty-nine of them on the main shelf, on 24-410, 28-400, 28-410 and 38-400. One-handed, which matters when the other hand is holding an animal, and that is a genuine usability argument in this category.

The treatment pump, for a smaller shot

Eleven on this shelf. A more controlled dose than a lotion pump, which suits a concentrated ear or coat product where volume matters.

Plain caps where the product is poured or applied by hand

One hundred and thirty-five continuous thread closures. The liner is doing the sealing, and it is the part to check against your formula rather than the shell.

Spot-on applicators are not here

The single-dose sealed pipette that a flea topical is normally sold in is a different article from anything on these shelves. If that is your format, this is not the shelf and we would rather say so.

Essential oils and liners

Many pet products in this space carry essential oils, which attack several liner materials over months. Ask with the oil and the loading named, and keep a filled sample to look at later.

The dose is the product in this category

An owner dosing by animal weight needs to get a number right, and the fitment is what makes that possible or not. Choosing it on cost and treating the graduation as a detail inverts what matters.

References

29 CFR 1910.1200, Hazard Communication, which sets what a shipped container of a hazardous chemical carries and requires a safety data sheet. law.cornell.edu
7 U.S.C. 136(u), the FIFRA definition of pesticide, which covers substances intended for preventing, destroying, repelling or mitigating any pest and then excludes any article that is a new animal drug within the meaning of the Federal Food, Drug, and Cosmetic Act, or that has been determined not to be one by regulation, or that is an animal feed bearing or containing a new animal drug. law.cornell.edu
Written from federal statute, not from a veterinary bench. Which regime a specific product falls under is a determination about that product, and state feed and drug programs run alongside the federal ones. Nothing here is a registration, an approval, or advice on a particular formulation.