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Use these -16 & -20 male adapters in Radiators, Electric Water Pumps, Thermostat Housings, Expansion Filler Necks or anywhere -16an or -20an male ORB to male AN attachment is needed.
Note: Our ORB adapters have short reach threads and are not compatible with all Water Pump applications.
The use of an appropriate size Autoplumb Water Neck Conversion Adaptor on your existing thermostat housing, filler neck or water pump will work well in most applications.
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