







💧 Stay dry, stay flawless – the G-Flex membrane your floors deserve!
The GURU USA G-Flex Uncoupling Membrane is a 3mm thick, 150 sq ft roll of high-density polyethylene waterproofing underlayment designed for tile floors in showers and bathrooms. Its unique nodule pattern prevents cracks by absorbing floor movements and vibrations, while also optimizing heat distribution for underfloor heating systems. Engineered for durability and moisture protection, it’s a professional-grade solution trusted by contractors to ensure long-lasting, flawless tile installations.






| Manufacturer | GURU USA LLC |
| Part Number | ILU5100 |
| Item Weight | 19.91 pounds |
| Package Dimensions | 39.45 x 9.5 x 9 inches |
| Item model number | ILU5100 |
| Is Discontinued By Manufacturer | No |
| Size | 150 SF |
| Color | Red |
| Material | High-Density Polyethylene (HDPE) |
| Shape | Round |
| Thickness | 3 Millimeters |
| Installation Method | Thinset |
| Coverage | 150 sq ft |
| Usage | Underlayment |
| Included Components | 150 sq ft of G-Flex Waterproof Uncoupling Membrane |
| Batteries Included? | No |
| Batteries Required? | No |
J**H
Easy to use
Easy to use and install. Works great!
Trustpilot
2 months ago
2 weeks ago