Gerber Plumbing Fixtures has added several high-performing, high-efficiency toilet options to its Allerton Collection, all offering 1.28 gpf. The new product options include round front, elongated and elongated ErgoHeight configurations. Each variation is available in 10" and 12" rough-ins. Each new Allerton toilet is WaterSense certified, and available in White and Biscuit. Both elongated versions are also available in Bone.