20-gauge CRS. White TGIC polyester powder coat 5-stage pre-treatment. Salt spray test: 1,000 hours; Reflectance: 92{04aef197e2a33ee94af7b49af44700ef917df47392523dfa0075c5fa9ebd8a96}. Flush end design for continuous row mounting. See Options for stainless steel type 304 brushed housing (SSH).