Zep Acidic Toilet Bowl Cleaner - 1 Gallon (Case of 4) R43710 - 2x Thicker Than Before! Professional Strength, Thick Gel Clings to Dirt and Leaves Toilets Clean - Walmart.com
Clorox Clinging Bleach Gel 2-Pack 48-fl oz Ocean Mist Toilet Bowl Cleaner in the Toilet Bowl Cleaners department at Lowes.com
The Works 32-fl oz Toilet Bowl Cleaner in the Toilet Bowl Cleaners department at Lowes.com