Air carrier, 6 letters
Floating down the river, 6 letters
Hollow cylindrical material, 6 letters
Hoses, 6 letters
Hydraulic system makeup, 6 letters
Outdoor-furniture material, 6 letters
River sport, 6 letters
River sporting activity, 6 letters
Tire filler, 6 letters
Water park recreation, 6 letters
Conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct liquids or gases, 6 letters
Cylindrical systems, 7 letters