Which 108 sq ft waterproofing roll belongs under your tile?
Two 108 sq ft waterproofing rolls. Same coverage, different material approaches, and a $24.49 gap in listed price. Both are meant to be installed beneath tile-shower walls, bathroom floors, steam rooms, wet areas. The choice comes down to which material format matches your project.
Quick verdict
Choose the Shower 20 Mil if you want the lower of the two listed prices. Choose the REDGARD if the title's "Suitable for all tile" claim describes your project.
Price and spec comparison
| Spec | Shower 20 Mil | REDGARD Fabric Membrane |
|---|---|---|
| Listed price | USD 63.50 | USD 87.99 |
| Price bar | ||
| Coverage | 108 sq ft (3.3 ft x 33 ft roll) | 108 sq ft (1 roll) |
| Material | PE underlayment with vapor barrier | Fabric membrane |
| Color | Orange | Red |
| Condition | New | New |
| Model / GTIN | Waterproofing Membrane / 7445049835887 | Fabric Membrane / 010186194844 |
Where each product wins
The Shower 20 Mil wins on price. It's a 20-mil roll, weighs 5 pounds, and carries a GTIN of 7445049835887. The orange color makes it easy to identify during a build.
The REDGARD wins on product identity. It is explicitly named and typed as a Fabric Membrane, it's red, and the title's "Suitable for all tile" language makes the intended use hard to miss.
Shower 20 Mil Shower Waterproofing Membrane 3.3 Ft X 33 Ft Roll (108 Sq.Ft) - PE
Choose the Shower roll when your build benefits from a tile underlayment that also handles vapor-barrier duty. The title gives you the sheet size-3.3 ft x 33 ft-and the construction is a 20-mil PE underlayment with a reinforced polyethylene core and dual non-woven fabric layers. The included component is the shower waterproof membrane itself, and the orange color stands out on the job. The limitation is category: this is a PE composite underlayment, not a standalone fabric membrane. If your plan is built around a fabric-membrane format, you'll want the other roll.
REDGARD Fabric Membrane 108 sq Ft (1 Roll) Red Waterproof-Suitable for all tile
Choose the REDGARD when your installation plan is built around a fabric membrane. The roll is red, the UPC is 010186194844, and the product statement is direct: a red waterproofing roll positioned for tile use. The limitation is the material focus. The REDGARD's listed identity centers on the fabric membrane form, not a layered PE underlayment with a vapor barrier. If your project calls for a composite underlayment, this roll won't match that specification.
Final choice
Use the roll that matches your installation method: the Shower 20 Mil for tile-underlayment work, the REDGARD for its named membrane format.

