Amazon has 5-Lbs Natural Balance L.I.D. High Protein Dry Cat Food (Salmon) on sale for $10.20 when you check out via Subscribe & Save.
Shipping is free w/ Amazon Prime or on orders $25+.
Alternatively,
Chewy has 5-Lbs Natural Balance L.I.D. High Protein Dry Cat Food (Salmon) on sale for $10.20 when you opt for Autoship & Save. Shipping is free on orders $49+.
Note, You may cancel your Subscribe & Save or Autoship & Save subscription any time after your order ships.