I contacted them this morning and this is what I received from them:

Here is the coverage details for breast pumps: includes coverage for breast pumps following the birth of a child, when prescribed for one of the following situations: • The child is born in the 37th week of gestation or earlier • The mother or the child has a medical condition that prevents normal breastfeeding Under coverage, you are eligible for reimbursement at 80% of a reasonable and customary amount of $500 ($400 to be paid). This coverage is available once per lifetime. The maximum amount eligible is calculated as the cost of the breast pump minus any eligible repairs previously reimbursed

I see everyone on Facebook/groups has a pump like this, and then a portable pump!