Nắp Nối Chai Dầu Gội/Sữa Tắm

When a bottle is getting low enough that it stops dispensing the content, what do we do? Add water? That makes the content less concentrated and makes is thinner. Remove the cap and start pouring by gravity? Not very convenient. Through away even though it still has the content? You would waste money and it's not very ecological.

I think a better solution is to pour the content into another bottle that is running low, while you use a new bottle. Once the spare bottle get's full from multiple bottles that were running low, you can later use it as a new bottle.

This cap can connect two bottles so the gravity does its job for us. Just leave it there for a few minutes or even hours, and you'll see how the top bottle gets completely empty passing all the content into the bottom bottle. You would be surprise how effective this is removing all the content.

The screw thread diameter has 1 ¼ inches which is very common on these kinds of bottles. So far I only use it for Head & Shoulders shampoo and Dove body wash, but I'm sure it works for other products.