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Condition:
Factory New
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Learn more:
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MFR:
RPI
Ships from Manufacturer
- MPN: CMS128
- Phone: (800) 221-9723
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Frequently asked questions
Is this silencer compatible with my Midmark CL21?
Yes, the RPI CMS128 is specifically engineered as a direct replacement for the Midmark CL21 dental compressor. It serves as an OEM cross-reference for part #62983300, ensuring a seamless and compatible fit.
Does this unit help reduce compressor noise?
Absolutely. The primary function of this silencer is to effectively reduce operational exhaust noise, contributing to a quieter and more professional clinical environment.
How does it handle the mist output from the compressor?
The CMS128 is designed with dual functionality. In addition to noise reduction, it actively eliminates aerosolized mist from the exhaust system, helping to keep your workspace cleaner.
What is the recommended replacement schedule for this part?
To ensure optimal system performance and consistent noise/mist reduction, the manufacturer recommends replacing the silencer twice per year (semiannually).
Is there an easy way to track when I need to replace it?
Yes, every RPI CMS128 ships with a PM (Preventative Maintenance) Sticker. This allows you to easily log the date of installation directly on the unit so you can stay on top of your maintenance schedule.
What size are the connection ports on this silencer?
The silencer features standardized connections designed for straightforward installation:
- Main Port: 1/2” Female Pipe Thread (FPT).
- Drain Connection: 1/4” (6mm) connector, ideal for attaching drain tubing to manage condensate.
Does the silencer include everything needed for the drain tubing connection?
The unit includes the 1/4” (6mm) drain tubing connector. If you are setting up a full drainage system, we also offer compatible components separately, such as clear PVC drain tubing (RPT604) or the Collection Container Kit (CMK181) to complete your setup.
Can I use this for equipment other than the Midmark CL21?
The RPI CMS128 is specifically designed for the Midmark CL21 compressor series and functions with the purge solenoid valve. While it acts as a high-quality replacement for OEM #62983300, it is tailored specifically for these dental compressor applications.
Are there specific adaptors recommended for installation?
Depending on your specific system configuration, you may find that RPI Part #RPF833 or RPI Part #RPF818 adaptors are useful for installation. These are available separately to ensure a precise, airtight fit for your compressor setup.
Is the RPI CMS128 a high-quality, reliable replacement part?
Yes. RPI components are built to meet rigorous standards for the medical industry. This unit is a factory-new, precision-engineered part designed to maintain the integrity of your dental equipment, replacing the standard OEM part with high reliability.

RPI CMS128 Exhaust Silencer