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Easy-to-install replacement DO membrane for the OHAUS DO Pen Meter (item #186043).
Easy-to-install replacement DO membrane for the OHAUS DO Pen Meter (item #186043).
If for any reason you are not satisfied with this item, it is eligible for a return, exchange, refund, or credit up to 180 days from date of purchase. Restrictions may apply. Returns & Exchanges Policy.