Product Description Toto TH305SV103 U-Packing Set for Toilet and Urinal 1.0 GPF Flushometer, 10-Piece From the Manufacturer Attention to detail, continuous improvement, over a thousand research and development professionals and 90+ years of experience fuel TOTO's product quality. TOTO provides unmatched performance, durability and reliability, representing the ultimate in customer satisfaction for our toilets, faucets, lavatories, showers and products for the entire bathroom.