The shelf
On this page11
What is here
917 rows: 485 containers and 432 closures. 100 mL to 7,571 mL with a median of 237.
By material
324 PET, 152 HDPE, 7 PP and 2 glass. The PET question has its own page because it deserves an argument rather than a silence.
By format
443 bottles, 15 jars, 15 tubs and pails and 12 jugs. Overwhelmingly a bottle shelf.
By capacity
166 containers over a pint, 82 over a quart, 35 over two quarts and 23 over a gallon. The large end exists and it is thin.
Against the archetype
home-pour starts at 950 mL. 82 containers are over a quart, so most of this shelf sits below the window, because the window describes the shop's bulk vessel and the shelf is what the customer carries.
The families that carry it
98 PET Boston rounds, 71 PET packers, 52 PET imperial bullet cosmos, 37 HDPE packers and 33 PE cylinder rounds.
The packer bottle is the refill bottle
Straight wall, wide label panel, stable base, and available across the sizes. For a shop selling branded starter bottles this is the format.
Two glass containers
In the category most associated with glass. A customer who wants a glass refill bottle is not served here, and that is worth saying at the top of a conversation rather than the bottom.
And twelve jugs
For the bulk vessel the archetype describes. Both of those are real absences rather than a preference, and both are a sourcing question rather than a design one.
How to shop it
Who is carrying it, which decides the size. Then viscosity, which decides the closure. Then the neck, standardised across the range so one set of pumps fits everything.