Most of these places have vendor portals so you can see individual pricing, you can also call, some places also sell to general public, but their pricing is based off of market conditions, so a week after the catalog is out, a large portion is outdated. General public don’t have accounts and the vast majority aren’t going to sign up for one off faucet cartridge either.
Do you think it would work for Walmart to price milk at one price the entire year for an example?