• Stamped aluminum 4 1/2" (115 mm) diameter dial
• Black, impact resistant phenolic case
• 316 stainless steel bourdon tube and socket
• Silicone fluid filled and rated for -50º to 170 °F
• 1/2% of full scale accuracy
• Transient over-pressure limit: 30%
• Restrictor screw
• Shatterproof glass lens
• Integral back flange
• Safety blowout backplate
• Micrometer adjustable pointer
• 1/4" or 1/2" NPT male
connection bottom