This specific 153900 model is an auto reset LWCO

allowing it to operate in harsher thermal conditions than the older GF series

Can I use a cross-referenced aftermarket filter instead

the 1145-33 provides a rugged

Spence 07-06608-00 Repair Kit 30067439-890 This specific 153900 model isThe Spence 07 06608 00 Repair Kit is the essential service components package for the Spence T134 Air Adjusted Pilot. Engineered for pressure reducing valve applications involving steam or air, this kit contains precision machined diaphragms, gaskets, and internal seating components required to restore factory spec regulation. When handling high pressure steam pressure regulators, maintaining the integrity of the pilot is critical to prevent hunting