The two dark aqua insulators w/amber swirls are Brookfield CD 162's. My question is: is the center insulator a CD 162 in light blue or a CD 162.3 in ice blue? The center insulator is embossed (F) W. Brookfield (R) New York. The wire groove is narrower that the other two. Oddly, it weighs 6 oz. more than either one of the others. All were purchased for $2.00 a piece.