Walsh agrees, saying that some municipalities are likely to offer incentives to developers and builders who use high-efficiency toilets—units that use 20 percent less water than 1.6 gallons-per-flush toilets. Even if further water consumption limits become mandatory, Streeby says, manufacturers are thinking five years into the future, so a repeat of what happened in the mid-'90s is unlikely to happen.

For more product information, visit ebuild, Hanley Wood's interactive product catalog, at www.builderonline.com or www.ebuild.com.

HIGH PERFORMANCE: Maxwell is the manufacturer's newest high-performance toilet, and the company says it has enhanced flushing capability. The 1.6-gallons-per-flush unit features a redesigned well, a fully glazed trapway, a front siphon-jet, and a 10 ½-by-8 ½-inch water surface. Measuring 17 inches high, the unit makes it more comfortable for users to sit and stand, the company says. It comes in white, bone, and biscuit. Gerber. 847-675-6570. www.gerberonline.com.

HIGH PERFORMANCE: Maxwell is the manufacturer's newest high-performance toilet, and the company says it has enhanced flushing capability. The 1.6-gallons-per-flush unit features a redesigned well, a fully glazed trapway, a front siphon-jet, and a 10 ½-by-8 ½-inch water surface. Measuring 17 inches high, the unit makes it more comfortable for users to sit and stand, the company says. It comes in white, bone, and biscuit. Gerber. 847-675-6570. www.gerberonline.com.

PERFORMANCE ART: The manufacturer says Maverick's 3-inch flush valve and optimized trapway design result in a unit that delivers maximum performance. Utilizing a large flush valve, a specially designed trapway and siphon-jet action maximize the water flow for superior flushing, the company adds. It also has a 2 1/8-inch fully glazed trapway and a 7 ¾-by-10 ¾-inch water surface. The product is available in an elongated design in a variety of colors. Mansfield Plumbing Products. 877-850-3060. www.mansfieldplumbing.com.

PERFORMANCE ART: The manufacturer says Maverick's 3-inch flush valve and optimized trapway design result in a unit that delivers maximum performance. Utilizing a large flush valve, a specially designed trapway and siphon-jet action maximize the water flow for superior flushing, the company adds. It also has a 2 1/8-inch fully glazed trapway and a 7 ¾-by-10 ¾-inch water surface. The product is available in an elongated design in a variety of colors. Mansfield Plumbing Products. 877-850-3060. www.mansfieldplumbing.com.

WATER SAVER: Titan has the most effective 3-inch flush valve anywhere in the industry, the manufacturer claims. Introduced at this year's International Builders' Show, the unit has a fully glazed trapway measuring 2 inches wide, a siphon-jet flushing system, and a water surface measuring 9 by 11 inches. It measures a comfortable 16 1/8 inches and comes in white, bone, and biscuit. Eljer Plumbingware. 972-560-2000. www.eljer.com.

WATER SAVER: Titan has the most effective 3-inch flush valve anywhere in the industry, the manufacturer claims. Introduced at this year's International Builders' Show, the unit has a fully glazed trapway measuring 2 inches wide, a siphon-jet flushing system, and a water surface measuring 9 by 11 inches. It measures a comfortable 16 1/8 inches and comes in white, bone, and biscuit. Eljer Plumbingware. 972-560-2000. www.eljer.com.