Made in Australia since 1983
Speedflow 3/8" NPT Male to 5/8"-18 Female Reducer Bush.
Mechanical Water Temperature Gauges which use a 5/8"-18 thread can be adpated to 3/8"NPT ports with this adapter.
Manufactured from marine quality 6061-T6 billet aluminium superior corrosion fatigue resistance.
Blue hard anodised aluminium construction (Also available in Black anodised finish).