1 ? 5 inch Aluminum Gutter Left End Cap MUSKET BROWN 1 ? 5 inch Aluminum Gutter Left end cap Musket Brown 1 - Heavy Duty 5 - inch Aluminum Gutter Left end cap Musket Brown Heavy Gauge aluminum used .019 (not like the material sold online and large box stores) A High-Quality Product Made in the USA. Baked-on factory finish for low maintenance. Should be sealed with GEOCEL CONSTRUCTION TRIPOLYMER GUTTER AND NARROW SEAM SEALANT made for the use of aluminum rain gutters. Best not to use with just any brand silicone sealants, as they don?t hold up as well. (you can find this in our other seamless gutter related listings). END CAPS Heavy Gauge aluminum used for 5-inch K style gutters (not like the material sold online and large box stores) Not to be used with Plastic Gutters Baked-on factory finish for low maintenance Should be sealed with GEOCEL CONSTRUCTION TRIPOLYMER GUTTER AND NARROW SEAM SEALANT A High-Quality Product Made in the USA Accessory for 5 - inch K Style Gutters