heads, simple to install. literally it is righty tighty, lefty loosy. many manufacturers, 2.2 mandated by the epa but also 1.5 gallons per minute and even .5. you can save a lot of money or water bills just by changing out a shower that he had can cost as little as $25. >> from water to electricity. tell me here about this power meter. >> the power meet eer is an interesting one, a lot people wonder, why is my electric bill so high? what's going on in my house that is causing the draw so much? this system, this meter, you can plug things in. called a kill oh ka kilowatt, tw much electricity you're using. a vampire, cell phone plugged in, stig drawing. if you eliminate a lot of those things, those vampire draws and know what you're pulling in, you can lower your electric bill. >> a good one. a lot of people know there's changes coming in the world of light bulbs.