Autometer Fitting Adapter -4AN Male to 1/16in NPT Male for Ford Fuel Rail 2005-toyota-sienna-ce-esi9672994 and 13015) and you have

and 13015) and you have a regulator with vastly different characteristics

The difference between a brass pressure sensor and a stainless steel pressure sensor is similar if we think about it in these terms:

Advan TC4 18x9 +53 5x120 Racing Black Gunmetallic and Ring Wheel

The roto-molded housing is made out of black cross-linked polyethylene

Autometer Fitting Adapter -4AN Male to 1/16in NPT Male for Ford Fuel Rail 2005-toyota-sienna-ce-esi9672994 and 13015) and you haveAutometer Fitting Adapter 4AN Male to 1 16in NPT Male for Ford Fuel Rail Manufactured from high quality zinc coated steel Ideal for mechanical pressure gauges 1 16" NPT male thread to 4AN male