Do Sterilite Ultra Seal containers contain BPA?

[kep]

Are they reasonably safe? We will eventually be upgrading to glassware, but these fit the budget for now. ;). It doesn't say on the package, and I can't find a phone number listed online or in the box.

[brittone2]

Do these have a number code on the bottom? 1-7?

[daisymommy]

Im 99% sure they are #5 (polypropylene) which is the safest reusable plastic there is (no BPA).
I just checked my Sterlite pitcher which is an ultra-seal, and it is #5, so I would assume the containers are too.