In order to connect a cover to an existing roller you will need to purchase a cover to roller strap set.
Alternatively in
...The Premium Swivel Swimming Pool Reel is an extremely versatile reel system ideal for wooden pools & pools with decking area surrounds. It is comprised of 1 fixed end which is fastened to the pool side or decking with the attached reel tube utilising an innovative universal joint enabling the reel to be moved away from the immediate pool side, giving complete freedom. Suitable for pools measuring 12ft to 18ft (3.66m to 5.49m) wide. The maximum recommended area of material suitable to be reeled onto the roller is 538 sq.ft (50 sq.m) The tube is manufactured from aluminium & the winding wheel from strong durable plastic. Comes with a 12 month warranty Special Offer: All reels come complete with a FREE reel to cover strap set worth up to