WATERLOCK Pro (8.5 in. x 35 ft.) Gutter Guard for K-Style, Half Round and Box Gutters, Under Shingle, Aluminum Frame, White

WATERLOCK Pro is a professional-tier gutter guard system, manufactured from durable 0.027 in. painted aluminum. Its flat, low-profile design slides under the first row of shingles and fastens along the front drip edge with just 3-4 color-matched zip screws per 5-foot section, making installation fast and straightforward. Instead of traditional mesh, WATERLOCK Pro features a louvered intake design with precision 0.7 mm openings that block leaves, pine needles, seeds, pests, and birds, while 6.7 mm underside intake ports capture high-volume runoff and channel it directly into the gutter during heavy downpours. Double-rib reinforcement along the front and back edges eliminate sharp edges for safer handling. A built-in overlapping strip between sections ensures seamless coverage with no gaps. Compatible with 5 in. 6 in. and 7 in. K-Style, box, and half-round gutter systems, WATERLOCK Pro works on metal, flat, and shingle roofs. Designed to withstand extreme weather without corroding, rusting, or degrading, WATERLOCK Pro is backed by a lifetime transferable 35-year warranty.

• Flat, low-profile design slides under the first shingle
• Built in overlap strips ensure seamless coverage with no gaps.
• Made from thick painted aluminum for durability