Stoma Opening: 7/8" Pre-Cut Convex

Relieves pain and provides pain-free dressing changes

Designed to accommodate the primary uses for hospital and home medical care equipment such as concentrators

3/4" Round with Barrier Pre-Cut Deep Convex

Medela® Battery Pack for Pump in Style® with MaxFlow™ and Pump In Style® Advanced Breast Pump Sold By:Case of 144 Stoma Opening: 7/8" Pre-Cut ConvexThe Pump In Style with MaxFlow and Pump in Style Advanced Battery Pack makes pumping on the go or when you are not near a power outlet easy and convenient. In the car, at work, or at home; you've got up to 2 hours of pumping time. The battery pack uses 8 AA alkaline or rechargeable batteries and comes with a black microfiber carrying case, which fits inside your breast pump bag or can be attached to the bag strap for easy transportation.