 Navaj is available at Sam's Club, Walmart, Walgreens, CVS, or online at navaj.com. Navaj. Breathe easy. Getting a second opinion is like double-checking the recipe before baking a cake. You want it to turn out right, don't you? The same is true for your A.C. repair. When your air conditioner is on the fritz, it's too hot to play guessing games.