Its recommended by Amazon.
1 bought the 1 pack @ $14.79
2 pack is $21.99.
2 day delivery.
I will buy another one as lots of hummers this year.
It's so easy to fill, keep clean. Cleaning tools are included.
Hope you like it, I do & so do the Hummers. 8-)
Love All Life; Thank You For Posting! :)