The Omega Tree Saver Watering Box makes keeping your tree hydrated nice and simple. Using a siphon design you won't have to climb under the tree to add water to the bucket.
From Omega's website:
The Omega TreeSaver is an automatic Christmas Tree watering system cleverly disguised as a Christmas present. It holds 2 gallons of water and requires NO batteries or electricity. The water flows by means on siphon action. It's simple physics!
Read more here: https://www.omegatreestand.com/treesaver