Elecro O-Ring Seal Pair - Manifold to union - Elecro Optima Compact

Elecro Heater spare part - Elecro SP-118 O-ring pair to suit Elecro Optima Compact heaters sold through Australian Spa Parts
These O-rings seal the male threaded union assembly to the main heater body manifold - no seal tape to be used on the thread.
Suits all single and three phase Optima Compact heaters