Comfort Height(R) elongated bowl * 2-1/8" trapway * Combine with the K-4474 Kelston toilet tank to create K-3754 Kelston Comfort Height elongated toilet, or combine with the K-4469 Kelston 1.28 toilet tank to create K-3755 Kelston Comfort Height 1.28 elongated toilet * Please see K-3754 or K-3755 Comfort Height toilets for full details