GAF Timberline HDZ Slate Algae Resistant Architectural Roof Shingles ( 33.33-sq ft per Bundle ) Item #3627558 Model #GOP18V-28N These are all keyed the

These are all keyed the same

Starlock® 3-D tool-accessory interface – delivers three-dimensional blade grip for more torque transfer

FEATURE & BENEFIT: InstantStart Starting Method with Normal Ballast Factor and Parallel Circuit Type "

• Oil Charge: 14 Pints (6

GAF Timberline HDZ Slate Algae Resistant Architectural Roof Shingles ( 33.33-sq ft per Bundle ) Item #3627558 Model #GOP18V-28N These are all keyed theWe took our signature #1 selling shingle, Timberline HD, and transformed it by strengthening the common bond and creating the industrys largest nailing zone. Timberline HDZ Shingles have the same renowned Timberline quality and performance you know and love, with improved nailing accuracy and installation efficiency! Timberline HDZ Shingles are easy and fast to install, with an incredible 99. 9% nail placement accuracy! A great value, architecturally