18 Mega rolls = 72 regular rolls. Septic safe. 3 Cushiony and absorbent layers. Premium performance. Ultimate softness! 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 Plush to upgrade your bathroom experience matters. That's why it 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!). 4X as many sheets. 1 Mega roll = 4 regular rolls. Flushable and septic safe for standard sewer and septic systems. Responsibly sourced, renewable materials that meet the standards of the Sustainable Forestry Initiative-so its good for the earth (www.quiltednorthern.com/sustainability). how2recycle.info. Sustainable Forestry Initiative: Certified Sourcing. www.sfiprogram.org.