Neptune Systems APEX Double Junction Lab Grade ORP Probe rare otherwise it will be refunded

otherwise it will be refunded

Our Anemone Pellets deliver a palatable and highly digestible balanced feed

OR PUT ONE ON YOUR PM2/PM3 MODULE FOR TEMPERATURE COMPENSATED READINGS

feed buttons

Neptune Systems APEX Double Junction Lab Grade ORP Probe rare otherwise it will be refundedORP PROBE Replace your ORP probe or add another for another tank Buy this probe if you are: Replacing a worn out ORP probe Adding another tank to your system and purchased a PM1 to do so. Double Junction probes will last longer about twice a long. A Single Junction Lab grade should be replaced in 12 months and a Double Junction Lab Grade should be replaced in 24 months.