Irritrol 2400TF Globe Valve NPT Threaded Connection with Flow Control, 1" Threaded bonnet design - Allows easy servicing without removal from the system Rugged, double-beaded SANTOPRENE diaphragm - Ensures a leak-proof seal Internal and external bleed (flush mode) - Allows for manual operation Full stainless-steel metering system - Allows for consistent valve operation Available in multiple configurations-female NPT, slip, male x male and male x barb