Barton makes model B42335 plastic roller furler set on stainless ball
bearings for sails up to 100 sq. ft. that sells for $ 53.42. You can find it
in Defender catalog page 326 under page heading Barton Blocks. You can find
them on the internet under http://www.defenderus.com or on phone at
(800)628-8225.
My understanding is that this is an all or nothing furler. There is no
reefing option. But most of us never use the CDI for furling any way. And...
it saves a trip to foredeck to douse the headsail.
Best
solarfry