#4 Str to 1/8 FPT Adapter FittingFitting - Gauge Adapter - Straight - 4 AN Male to 1/8 in NPT Male - 1/8 in NPT Gauge Port - Aluminum - Black Anodized - Each
#4 to 12mm Adapter Fittings (2pk) UniflareFitting - Adapter - Straight - 4 AN Male to 12 mm x 1.00 Male Inverted Flare / Bubble Flare - Steel - Nickel Plated - Pair