[amazon.com](https://npw.clicorice.ca/links/6cnous) has the 24-Pack of Green Gobbler BIO-FLOW Drain Strips for **$9.89** with free shipping on orders over $25 or free with Prime.

Home Depot has the [1-Gal Green Gobbler Main Line Cleaner and Clear Drain Opener](https://npw.clicorice.ca/links/i3qNB7?pwskip=true) for **$16.98** with free store/curbside pickup.