Plain Siamese
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PS65, 4 CT Male X 2.5 CT Female Swivel Siamese Brass,
PS6508MB -
PS65, 4 National Standard Thread (NST) Male X 2.5 National Standard Thread (NST) Female Swivel Siamese Brass Chrome Plated,
PS6508AC -
PS65, 4 National Standard Thread (NST) Male X 2.5 National Standard Thread (NST) Female Swivel Siamese Brass,
PS6508AB