Maple sap bags 2 1/2 gallon. Bag comes ready to use. just drill out the tab , cut the corner off, and push your spout through. Bag stays on tree, just tip to empty. Throw in the recycling at end of season. Much easier than buckets. Also available in 5 gallon
see uploaded video for proper installation
https://cdn.shopify.com/videos/c/o/v/9d4a6c00be7547819c0ff772fe1d987c.mp4