This is an add-on or replacement 4 Foot Extension tube for Breg Polar Care units. Breg Polar Care Extension Tube Item#09915.
IMPORTANT - The 4 Foot Extension tube is for the Breg Polar Care Cube, Glacier and Cub units. It will not fit the Breg Kodiak unit.
Please see this attached picture of the CORRECT fitting for the Polar Care extension tubing