KOHLER K-4198-0 Toilet Repair Kits, White KOHLER wellworthelongated toilet bowl with 12 in. Rough, white - 109712 This is highly durable This is manufactured in china Class Five flushing technology provides tremendous bulk waste flushing performance and best-in-class bowl cleanliness Canister flush valve provides smooth flushing actuation with consistent water usage, flush after flush Combines with K-4436 Wellworth toilet tank to create K-3575 Wellworth round-front toilet with 12-Inch rough-in 1.28 gpf High-efficiency toilets provide significant water savings of up to 16,500 gallons per year versus an old 3.5 gallon toilet without sacrificing performance 12-Inch rough-in