The HydroWorks Toilet Repair Kit, exclusively available at Walmart, is an easy-to-install upgrade that provides significant savings of water and money.

The HydroWorks HWK210 Toilet Fill Valve - The HydroWorks toilet fill valve solves the two biggest reasons for water loss in toilets - miscalibration and leaks. Ordinary fill valves send water to the bowl throughout the entire tank-filling cycle. The HydroWorks can be calibrated to adjust the exact amount of water needed. It also detects leaks and signals when a leak is found. Proven in independent studies to reduce water usage by 36%, the feature-rich HydroWorks fits all standard toilets and installs easily without tools.
 

The HydroForce Adjustable Flapper HFL190 - Unique in the market for its full range of adjustability, the flapper accurately fits more toilets than any other flapper sold. This leak resistant, easily adjusted, water-saving product takes the guesswork out of choosing the right flapper. A study conducted in 2004 for the California Urban Water Conservation Council showed that a 1.6 gal. toilet mistakenly fit with a 3.5 gal. flapper can use as much as 4.4 gallons with every flush. The HydroForce is made of high-quality materials that can withstand the extreme water conditions and harsh chemicals that cause leaks.