Showing all 5 results
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O-Rings, 3″ Standard (25 pack) | #80-0293
$10.003″ O-rings for 5 L and 2.5 L vessels.
These O-rings have been sulfur cured, which can create false positives on pesticide testing that uses sulfur content to evaluate concentration.
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O-Rings, 3″, Peroxide Cured (25 Pack) | #80-0221
$41.003″ Peroxcide Cured O-Rings for Extractor and 2.5L and 5L Columns. Quantity of 25.
Peroxide cured O-rings will not provide any false positives on pesticide testing that uses sulfur content to evaluate concentration.