Navigation forKitchens Overview How To & DIY Video Budget Ideas Ideas & Inspiration Planning Installation Maintenance Renovation More Overview How To & DIY Video Budget Ideas Ideas & Inspiration Planning Installation Maintenance Renovation What Is It? | Blue Teardrop Ask This Old House host Kevin O’Connor shows a blue plastic teardrop, but What Is It? By Kevin O'Connor, Host Share this story Share this on Facebook Share this on Twitter Share All sharing options Share All sharing options for: What Is It? | Blue Teardrop Pinterest Email Pocket Flipboard Resources Kevin O’Connor demonstrated the Every Drop Water Filter, a portable water filter manufactured by Whirlpool. Next Up In Kitchens How to Install Under Cabinet Lighting Outdoor Kitchen Planning Guide How to Install an Electrical Receptacle on a Kitchen Island The 5 Best Chef’s Knives (2022 Review) The 5 Best Cookware Sets (2022 Review) The 5 Best Bread Makers (2022 Review) Sign up for the Newsletter Get the latest This Old House news, trusted tips, tricks, and DIY Smarts projects from our experts–straight to your inbox. Thanks for signing up! Check your inbox for a welcome email. Email (required) Oops. Something went wrong. Please enter a valid email and try again. By submitting your email, you agree to our Terms and Privacy Notice. You can opt out at any time. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply. Subscribe