Description
– 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 – Replaces the obsolete 143550
