Mega 4 rolls = 16 regular rolls. 3 cushiony and absorbent layers. Septic safe. Persnickety About the Good Life: Confession: We can be a little obsessive about all the tiny details that go into our products. After all, crafting Quilted Northern Ultra Flush to upgrade your bathroom experience matters. That's why if features: Three cushiony and absorbent layers for ultimate comfort that still offer a worry-free, septic safe solution. Our patented technology that delivers the softness you want while cutting down on what you don't (lint!). Responsibly sourced, renewable materials that meet the standards of the Sustainable Forestry Initiative - so it's good for the earth (www.quiltednorthern.com/sustainability). Flushable and septic safe for standard sewer and septic systems. Sustainable Forestry Initiative: Certified sourcing. www.sfiprogram.org.