SECTION 1. The opening paragraph of section eight of the Act of Congress of the United States of August fifth, nineteen hundred and nine, entitled "An Act to raise revenue for the Philippine Islands, and for other purposes", is hereby amended to read as follows: Rates of duties;
"SEC. 8. That the rates of duties to be collected on articles, goods, wares, or merchandise imported into the Philippine Islands, or going into said islands from the United States or any of its possessions except as otherwise provided in this Act, shall be as follows: Provided, That no article bearing evident signs of being for sanitary construction shall pay a higher rate of duty than twenty per centum ad valorem: And provided, further, That articles of foreign growth, produce, or manufacture shall be dutiable upon each importation, even though previously exported from the Philippine Islands, except as otherwise specifically provided in this Act.
"By 'sanitary construction' is meant the fixtures, fittings, and attachments, such as pipes, valves, drains, spigots, basins, faucets, douches, sinks, and waterclosets, used in modern sanitary house plumbing and for bathrooms."