


OBS Pressure Gauge + Gauge Guard
The OBS Series is the industry’s only integral molded one-piece plastic pressure gauge and gauge guard. Gauge guards are utilized to protect the pressure gauge from any corrosive media in the process system via an isolator. The OBS Series Pressure Gauges are truly unique and industry leading when it comes to pressure measurement in corrosive environments.
OBS Pressure Gauges are a one-piece design and come factory pre-filled, resulting in an industry leading accuracy of 1.5%. Eliminating the need for filling saves the user time and the difficulty of having to fill a gauge isolator. The 3 movable red, yellow and green range tabs are designed to act as a visual pressure alert for bag or filter change-outs.
The OBS Series is available in PVC, PP & PVDF, all equipped with a Teflon® Diaphragm, making the entire unit completely corrosion resistant and the perfect pressure gauge for chemical applications. Engineering the entire body in a plastic housing rather than just the gauge guard allows users to be confident that the complete unit will stand up in even the most corrosive environments.
- No Filling or Assembly Required – One Piece Design
- Excellent Chemical Resistance
- Range Tabs – Red | Yellow | Green
- Glycerin Filled | (Silicone Optional)
- Teflon® or FPM Diaphragm
- ±1.5% Accuracy
- Large 2 ½” Display
- ½” G | BSP | NPT | Male or Female Process Connections
- 0-60 | 0-100 | 0-160 psi Dual Scale Ranges * (Other Ranges Available)




OBS-2VU Double-Sided Pressure Gauge
The OB2-2VU Series is double sided and the industry’s only integral molded one-piece plastic pressure gauge and gauge guard. Gauge guards are utilized to protect the pressure gauge from any corrosive media in the process system via an isolator. The OBS Series Pressure Gauges are truly unique and industry leading when it comes to pressure measurement in corrosive environments.
OBS Pressure Gauges are a one-piece design and come factory pre-filled, resulting in an industry leading accuracy of 1.5%. Eliminating the need for filling saves the user time and the difficulty of having to fill a gauge isolator. The 3 movable red, yellow and green range tabs are designed to act as a visual pressure alert for bag or filter change-outs.
The OBS Series is available in PVC, PP & PVDF, all equipped with a Teflon® Diaphragm, making the entire unit completely corrosion resistant and the perfect pressure gauge for chemical applications. Engineering the entire body in a plastic housing rather than just the gauge guard allows users to be confident that the complete unit will stand up in even the most corrosive environments.
- Industry’s First All Plastic Double Sided Gauge
- Heavy Duty Rugged Design; Simple to Install
- Completely Corrosion Resistant
- Designed to Act as Visual Pressure Alert
- Extra Large Colored Display
- Reduces Pressure Surges caused by Water
- Hammer or Metering Pump Pulsations Highest Accuracy in Industry 1.5%
- Factory Prefilled-Glycerin or Silicone
- No Filling Required
- One-Piece Molded Design (No Assembly)
- Suitable for Corrosive Media + Slurries





OBS ‘BAG’ Series – 3″ Gauge + Gauge Guard
The OBS “BAG” Series is the industry’s only integral molded one-piece plastic pressure gauge and gauge guard that features a large 3″ dial. Gauge guards are utilized to protect the pressure gauge from any corrosive media in the process system via an isolator. The OBS Series Pressure Gauges are truly unique and industry leading when it comes to pressure measurement in corrosive environments.
OBS Pressure Gauges are a one-piece design and come factory pre-filled, resulting in an industry leading accuracy of 1.5%. Eliminating the need for filling saves the user time and the difficulty of having to fill a gauge isolator. The 3 movable red, yellow and green range tabs are designed to act as a visual pressure alert for bag or filter change-outs.
The OBS “BAG” Series is available in PVC, PP & PVDF, all equipped with a Teflon® Diaphragm, making the entire unit completely corrosion resistant and the perfect pressure gauge for chemical applications. Engineering the entire body in a plastic housing rather than just the gauge guard allows users to be confident that the complete unit will stand up in even the most corrosive environments.
- One Piece Integral Design
- Extra Large 3″ Display
- No Filling or Assembly Required
- Optional Range Markers
- Heavy Duty Rugged Design
- Dual Scale
- PP | PVC Body-Teflon® | FPM Diaphragm
- ±1.5% Accuracy
- PTFE Teflon | FPM Diaphragm





OBS-R 360 Series
The OBS-R 360 Series is the industry’s only integral molded one-piece plastic pressure gauge and gauge guard equipped with a 360 degree rotatable head. Gauge guards are utilized to protect the pressure gauge from any corrosive media in the process system via an isolator. The OBS Series Pressure Gauges are truly unique and industry leading when it comes to pressure measurement in corrosive environments.
The OBS-R 360 Series Pressure Gauges are a one-piece design and come factory pre-filled, resulting in an industry leading accuracy of 1.5%. Eliminating the need for filling saves the user time and the difficulty of having to fill a gauge isolator. The 3 movable red, yellow and green range tabs are designed to act as a visual pressure alert for bag or filter change-outs.
The OBS-R 360 Series is available in PVC, PP & PVDF, all equipped with a Teflon® Diaphragm, making the entire unit completely corrosion resistant and the perfect pressure gauge for chemical applications. Engineering the entire body in a plastic housing rather than just the gauge guard allows users to be confident that the complete unit will stand up in even the most corrosive environments.
- 360 Degree Full Rotation
- No Filling Required
- Pressure Range Tabs Red | Yellow | Green
- Highest Accuracy in Industry – 1.5%
- One-Piece Molded Design (No Assembly)




OBS-B Center Mount Pressure Gauge
The OBS-B Series is the industry’s only integral molded one-piece plastic pressure gauge and gauge guard. Gauge guards are utilized to protect the pressure gauge from any corrosive media in the process system via an isolator. The OBS Series Pressure Gauges are truly unique and industry leading when it comes to pressure measurement in corrosive environments.
OBS Pressure Gauges are a one-piece design and come factory pre-filled, resulting in an industry leading accuracy of 1.5%. Eliminating the need for filling saves the user time and the difficulty of having to fill a gauge isolator. The 3 movable red, yellow and green range tabs are designed to act as a visual pressure alert for bag or filter change-outs.
The OBS Series is available in PVC, PP & PVDF, all equipped with a Teflon® Diaphragm, making the entire unit completely corrosion resistant and the perfect pressure gauge for chemical applications. Engineering the entire body in a plastic housing rather than just the gauge guard allows users to be confident that the complete unit will stand up in even the most corrosive environments.
- No Filling or Assembly Required – One Piece Design
- Excellent Chemical Resistance
- Range Tabs – Red | Yellow | Green
- Glycerin Filled | (Silicone Optional)
- Teflon® or FPM Diaphragm
- ±1.5% Accuracy
- Large 2 ½” Display
- ½” G | BSP | NPT | Male or Female Process Connections
- 0-60 | 0-100 | 0-160 psi Dual Scale Ranges * (Other Ranges Available)





OBS-A Panel Mount Pressure Gauge
The OBS-A Series is the industry’s only integral molded one-piece plastic pressure gauge and gauge guard. Gauge guards are utilized to protect the pressure gauge from any corrosive media in the process system via an isolator. The OBS Series Pressure Gauges are truly unique and industry leading when it comes to pressure measurement in corrosive environments.
OBS Pressure Gauges are a one-piece design and come factory pre-filled, resulting in an industry leading accuracy of 1.5%. Eliminating the need for filling saves the user time and the difficulty of having to fill a gauge isolator. The 3 movable red, yellow and green range tabs are designed to act as a visual pressure alert for bag or filter change-outs.
The OBS Series is available in PVC, PP & PVDF, all equipped with a Teflon® Diaphragm, making the entire unit completely corrosion resistant and the perfect pressure gauge for chemical applications. Engineering the entire body in a plastic housing rather than just the gauge guard allows users to be confident that the complete unit will stand up in even the most corrosive environments.
- No Filling or Assembly Required – One Piece Design
- Excellent Chemical Resistance
- Range Tabs – Red | Yellow | Green
- Glycerin Filled | (Silicone Optional)
- Teflon® or FPM Diaphragm
- ±1.5% Accuracy
- Large 2 ½” Display
- ½” G | BSP | NPT | Male or Female Process Connections
- 0-60 | 0-100 | 0-160 psi Dual Scale Ranges * (Other Ranges Available)