Coloplast Conveen Basic Bedside Drainage Bag

The diameter of the Coloplast 21365 bag does not seem to be compatible with the Hollister ostomy bag. the adaptor/connector that comes with the Hollister Ostomy bag is of a greater diameter then the connector tube for the Coloplast. which renders this unit useless. If you are using Hollister request a different system, these were sent to me by my medical supply contact when I requested an over night replacement bag. For my purposes they appear to be useless.