Design/Construction
Forged brass body & housing cap
2.5" (63.5 mm) gauge : brass
Stem type seat mechanism
3.25" (83.6 mm) diaphragm : fabric-reinforced neoprene
Delrin cap for smooth adjustment 
Design for gas distribution system (pipeline)
Available in either 1/2" NPT(F) or 3/4" NPT(F) inlet
 
Dimensions
W x H x D : 4" x 7" x 6" 
                  (101.6 mm x 177.8 mm x 152.4 mm)
 
Weight 
4 lb 15 oz (2.4 kg)