BIF250T Dixon Brass British Instantaneous Adapter - 2-1/2" Male BRIT x 2-1/2" Male NPTPart Number BRIT Thread Thread Weight (Lbs.) BID250F 2 1 2" Female BRIT 2 1 2" Female NST(NH) 3. 6500 BID250T 2 1 2" Female BRIT 2 1 2" Female NPT 3. 6500 BIB250F 2 1 2" Female BRIT 2 1 2" Male NST(NH) 3. 3500 BIB250T 2 1 2" Female BRIT 2 1 2" Male NPT 3. 3500 BIA250F 2 1 2" Male BRIT 2 1 2" Female NST(NH) 3. 5500 BIA250T 2 1 2" Male BRIT 2 1 2" Female NPT 3. 5500 BIF250F 2 1 2" Male BRIT 2 1 2" Male NST(NH) 2. 3000 BIF250T 2 1 2" Male BRIT 2 1 2"