Roof valleys concentrate massive amounts of water into one small section of gutter. The Extreme XL increases capacity at that critical point and directs runoff to the left, helping stop overflow before it damages your home.
Key Benefits
Left-Directional Flow Control
Directs heavy runoff toward the left downspout, balancing water distribution across your gutter system.
Up to 200% Capacity Increase
Expands the gutter at the valley so it can handle extreme rainfall without overshooting.
Helps Prevent Costly Damage
Protects against:
Foundation and step cracking
Walkway and lawn erosion
Flower bed washout
Wood rot
Water intrusion
Installs in Minutes
Attaches securely with included screws for simple DIY installation.
Made to Last
Constructed from thick .032 aluminum for durability and long service life.
