Spirax Sarco 1802980 Replacement Element Assembly and Gaskets for the BT6-B Balanced Pressure Thermostatic Steam Trap. Includes brand new OEM steam trap element and three replacement Tuf-Steel® Gaskets for the body seal. Spirax Sarco's "thin-walled" stainless steel element gives a rapid response to changes in pressure and temperature. This kit includes everything you need to replace the guts of your Spirax Sarco BT6-B Steam Traps so that they are functioning like new again. Works for both low and high capacity models.