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Ships within 48 hours · Estimated delivery Aug 23 - Aug 28
building standards
Outside Pipe Size
These oversized
Not approved for use on fish intended for human consumption
Ammonia Alert Crystal building standardsAmmonia Alert is an innovative colour device designed for continuously detecting and monitoring toxic free ammonia. The internal sensor changes colour reversibly from yellow to green to blue, relative to the ammonia concentration. The device detects less than 0. 05 mg l free ammonia and lasts over one year. Put one in every aquarium and tank.
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