HMBT1312F 13mm x 1/2inch Threaded Female Tee, Bulk TT1912F 19mm x 1/2inch Threaded Female Tee, Individually Barcoded HMBT1912F 19mm x 1/2inch Threaded Female Tee, Bulk TT2512F 25mm x 1/2inch Threaded Female Tee, Individually Barcoded HMBT2512F 25mm x 1/2inch Threaded Female Tee, Bulk. The latest micro fittings from holman feature a comphensive range. Made from virgin polypropylene. These new release fittings are packaged in easy to order outer, inner and bag quantities to save time & money. the inner cartons are specially designed with a tear off section and can be easily used as a display carton.