LASCO Plumbing Specialties 17-6783 is a 1/4-Inch feminine by 1/4-Inch young-begetting Pipe Thread Brass Adapter. feminine by young-begetting pipe thread adapter. Brass real lifelong. for use in beverage drinking water applications. for fuel, oil, air, liquifiable petroleum -LRB- LP -RRB- and uncolored gas lines connections. 1/4-Inch feminine by 1/4-Inch young-begetting pipe thread.