Parker, Gates, any hydraulic hose manufacturer is going to be able to sell you "jacketing" for hydraulic hoses. Parker has some cheap fabric stuff that is just a sleeve and adds a lot of abrasion resistance called Partek. The stuff I'm partial to is PolyGaurd. It's a spiral plastic guard that you wrap around the hose. Every brand has them and any hydraulic distributor will carry it. I do believe that the Partek source is cheaper. Either of them will cost less, offer better protection, and look far better than cutting cheap hose and sliding it over hydraulic hose.
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