This Viton O-ring measures exactly 15.54 mm inner diameter with 2.62 mm thickness. It replaces Part #2126121 (cross-reference OV-1050) . This O-ring is used on Edwards EH Booster and QMB Blower pump families, including QMB250, EH250, QMB500, EH500, EH2600, and EH4200 models . The Viton (FKM) material handles high heat up to 200°C and harsh chemicals better than standard rubber .
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