Armstrong YELLOW Regulating Spring 3-21
Item #:
D25399
Product Info
D25399
For use on 1/2-in thru 6-in GP2000 and GP2000CS, regulating spring only,
NOTE: also used for 1.5-3psi if one pilot diaphragm is removed.
Old Armstrong part no. 6020381
New Armstrong part no. D25399