Kiefer 40" Rescue Tube The Kiefer 40" Cutaway Rescue Tube is one of the best all around piece of water rescue equipment available. This multi-purpose device can be used for throwing or for towing a swimmer. This rescue tube features an adjustable shoulder strap, and reach assist loop. Adjustable shoulder strap and reach assist loop end give added comfort and rescue technique flexibility. Approved by leading lifeguard trainers for use in pools, water parks, and open water.