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Weld neck, 4-inch O.D. Pyrex® 7740 borosilicate optical glass 4-inch diameter nominal viewing area Type 304 stainless steel mounting Viton® O-ring seal Replaceable glass Description Economical visual quality viewport used on high vacuum chambers. Weldable configuration allows i more...
MDC Vacuum Products, LLC
Hayward, CA 94544 map
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