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Edge Welding Cups 920 Series #21 Pyrex Cup
Edge Welding Cups 920 Series #21 Pyrex Cup Replacement EDGE welding cup (glass only) must be used with EDGE Adapter, Thermal Spacer and O-rings. 1 Cup per order Does not include diffuser or other hardware Edge Part Number GL920-P21D332 Must be used with #21 Diffuser Discs
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