O-Rings, 5″ Standard (25 pack) | #80-4651
$35.005″ O-rings for 20 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, 5″, Peroxide Cured (25 Pack) | #80-0222
$120.205″ peroxide cured O-rings for 20 L vessels.
Peroxide cured O-rings will not provide any false positives on pesticide testing that uses sulfur content to evaluate concentration.
