Another question about Zevex pump

[Guest guest]

Has anyone ever used a closed system formula bag/container with the spike set

for the

Zevex pump? I never even heard of this until recently. Evidently, I can order

the formula

in containers or pre-filled bags (not sure which), and they have a hang time of

48 hours. I

know the formula comes in either 1000mL or 1500 mL this way, but I don't know

the

dimensions of the container/bag. Is this something that will fit in the

mini-backpack or

will it be too bulky and heavy? Just trying to weigh all my options.

Kim C.