Rocky's 317/325 #5A Permanent Reel System with AT-2 Tube Set - The 5A Portable Reel System uses Rocky's 3" Adjustable Tubing. The 5A has a longer handle and 4" locking wheels to support it's sturdy design. Ground clearance to the underside of the tubing is approximately 10 3/4″. It is for use on pools up to 24' x 65'. Includes AT-2 (Part 325) Tubing.