143549, 3 Color Differential Pressure Needle Gauge
• 3 Color Differential Pressure Needle Gauge
• Gauge Tells the User When to Change the Filters While the Filter is in Operation
• Easily Mounts Directly to MM (Meter Mount) Caps with Screws Provided
• Can be Read from Both Sides
• Needle Points to International Standard Color to Determine when Filter Needs to be Changes
• Green (Clean) 0-6 psid
• Yellow (Change) 6-9 psid
• Red (Dirty) 9-12 psid
