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Caleb AllenSep 14, 2025
Why does the pressure reading on the regulated pressure gauge drop when an accessory is used on my Bosch CET4-20 Air Compressor?
- WWilliam PriceSep 14, 2025
It is normal for some pressure drop to occur when an accessory is used with your Bosch Air Compressor. Adjust the regulator accordingly. The cause is that the regulator is not adjusted correctly for the accessory being used.

