Weatherford Klepo Special HDH Inflatable Thread Protectors feature a deeper cavity, which grips higher on very tapered threads. Some connections that they perform excellent on are:
Hydril SLX, 533, 501, 521, 511, 523, 503, Mac, Mac-II Grant Prideco – ST-L, NJO, FL-4S, HD-L, ST-M
Hunting SL-Flush, Vam SLIJ, Drill-Quip E 60, and Antaras.
Size Range:5″-26″.
Suitable for use in temperatures between +13℃/+65℃ (+55℉/149℉).