Johnson Controls V 152 601 Water Valve Kit Els PW 17895 Industrial Build Quality: High grade contacts Industrial Build Quality: High grade contacts designed to resist pitting and carbon buildup during repetitive cycling the Williams P320758 Pilot serves as a reliable solution for millivolt systems where pilot flame adjustment is critical for achieving the necessary 3 8" to 1 2" generator tip coverage the V 152 601 kit provides a 1 piece V Ring packing solution that withstands the cycling demands of water based heating and cooling loops it includes high durability V Ring packing specifically engineered for a 3 16 inch valve stem