07500 Plug door 3' eve recessed ends Flat panel roof with Wood roof walk. Classes Rr19, Rr23 Rr25 and Rr28.
07600 Plug Door 3" eve 4/4 Dreadnaught ends with Flat panel roof and Wood roof walk. Class Rr34, Rr35
07700 Plug Door 7" eve 4/4 Dreadnaught ends Preco fan Flan panel roof with Wood roof walk. Class Rr35.
07800 Plug Door 7" eve 3/3 Improved Dreadnaught ends with Angle Panel roof with Metal roof walk. Class Rr48.