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Use these -16 & -20 male adapters in Electric Water Pumps, Thermostat Housings, Expansion Filler Necks or anywhere -16an or -20an male to ORB or NPT attachment is needed.
Note: The ORB and NPT adapters have short reach threads and are not compatible with all Water Pump applications.
The 1-1/4" 20TPI adapter is commonly used in most brands Swivel Thermostat Housings. Just remove the barb hose fitting and install one of these -16an or -20an adapters.
Consult with the manufacture of the item you are adapting for additional information.
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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