The PFI 200-1A coupler is a
precision machined assemblage of components designed with a
failure mode that meets all aspects of the 1998 American
Association of State Highway and Transportation Officials (AASHTO)
specification for sign, luminaire and traffic signal supports. The PFI
200-1A coupler is available as a direct replacement for the PFI 100-1 and
other couplers that met the 1975 AASHTO specifications, thus assuring the
motoring public the ultimate in safety.