One curved stem about 5 ft. long.
One straight extension stem 5 ft. long.
At least one hat brush with the system.
58 to 64. Same as for Class 1.
64a. All brushes to be of substantial construction, with best quality bristles set in close rows and as thick as possible, skirted with rubber, leather, or chamois skin, so that all air entering renovator will pass over surface being cleaned.
65 to 68. Same as for Class 1.
69. Hose Racks. Furnish and properly secure in place, where directed, .... hose racks in basement, .... each in first and second stories (.... racks in all). The racks to be constructed of cast-iron, galvanized or enamel finish, and each rack to be suitable for holding 75 ft. of hose of required size.
69a. Hose. There must be furnished with each hose rack, 75 ft. of non-collapsible hose in three 25-ft. lengths.
70. Hose shall not be less than 1 in. or more than 1-³⁄₄ in. inside diameter, best quality rubber hose, reinforced in best manner to absolutely prevent collapse at highest vacuum obtainable with the exhauster furnished and to prevent collapse if stepped on. Weight of hose to be not over 12 oz. per linear foot.
71 to 73. Same as for Class 1.