Dual guard has a unique patented flange which acts like a gasket, sealing off the sub-floor and preventing air and moisture infiltration under the threshold. This helps keep the door frame from racking and the sub-floor from swelling and warping.
| Color | : | Black/White |
| Length | : | 7 ft |
| Material | : | Polyethylene |
| Resists | : | Mildew, Mold, Water |
| Width | : | 5-1/2 in |