Coronet > Pipe Fittings > Compliant Imported Cast Red Brass Pipe Fittings > Compliant Imported Cast Red Brass Reducing Female Pipe Couplings > Advanced Search Advanced Search in Compliant Imported Cast Red Brass Reducing Female Pipe Couplings Unit of Measure Imperial Metric Both Specifications Pipe Thread (") No Preference 1/4 3/8 1/2 3/4 1 1-1/4 1-1/2 2 2-1/2 3 4 Pipe Thread (2) (") No Preference 1/8 1/4 3/8 1/2 3/4 1 1-1/4 1-1/2 2 2-1/2 3 Clear Cancel Advanced Search