My guess is that it is "one size fits all" in regard to the hose length.In the larger units it is a stretch.If I can find a extension I will report back but the report by Sue is encouraging.
From the vac website
Pair up your InterVac unit with our high quality accessory kit and vacuuming just became a breeze! Choose a 30' crushproof hose or the easy-to-use 40' stretch hose that shrinks to just 8 feet when stored and is great for quick clean ups! Also included is a combination bare floor/carpet tool that picks up lint and cleans close to the baseboards, a dust brush, crevice tool and upholstery brush with a removable brush, and one piece telescopin aluminum wand that can be adjusted to various lenghts for a custom fit every time.
I wonder which of these hoses we have..I don't think it is the 40 foot one as that would be plenty long enough????
From the intervacdesign.com website. FAQ
My hose is too short. Can I get an extension?
Yes, you can purchase 10’ extensions
Seek and ye shall find...
Rich& Helen N.Ridgeville,Ohio.
F-350SD, Lariat, V-10,4:30 Diff, tow command Long bed, Crew Cab Dually, 06 3400RL
Mor-Ryde Pin Box