Wika 2.5 type 213.40 30 inhg / 30 psi gauge – 1/4 npt lm forged brass wika type 21x.40pm gauges are designed to fit existing paper machine panels. Each gauge is hermetically sealed to prevent moisture from entering during washdown. The hermetic seal makes this gauge liquid fillable for high vibration or pulsation applications. The generously oversized polished stainless steel front flange allows for easy retrofit installation. specifications: connection location: lower mount wetted parts: brass copper alloy case material: forged brass case filling: liquid window type: standard window construction: acrylic