This Sealing Ring (Part #300207) is a replacement part made for Pfeiffer DUO 120A vacuum pumps. It is a small but critical component that helps keep your pump running properly. Two of these rings are used inside each DUO 120A pump, and they are also included in the official Pfeiffer seal kit (PSK024). If you are rebuilding your pump or fixing a leak, this is the right part for the job.
Keep your Pfeiffer vacuum pump running smoothly with this Oil Seal (Part #310149). Made specifically for the DUO 120A and DUO 125 models, this small but critical part stops oil from leaking out and dirt from getting in. If you are rebuilding your pump or fixing a small leak, this seal is exactly what you need to get the job done right.
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