GENERAL DESCRIPTION: THIS IS THE TUBE BUNDLE USED IN THE RAYPAK 155B HEATER NUMBER OF TUBES: 4 LENGTH: 15-1/8" (LENGTH FROM OUTSIDE OF ENDPLATE OUTSIDE OF ENDPLATE) HEIGHT): 3-1/2" (END PLATE HEIGHT) WIDTH: 8-5/8" (MEASURED ON THE ENDPLATE - BASICALLY THIS IS HOW LONG THE ENDPLATE IS) MARKINGS: NO MARKINGS ITEMS INCLUDED WITH THE TUBE BUNDLE (1) 004889F BOLT KIT (8 STUDS AND 8 NUTS) (1) 800014B HEADER GASKET KIT (8 - HEADER GASKETS) (1) 003964F BAFFLE KIT (3 BAFFLES)