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Double Junction Lab Grade pH Probe - Neptune Systems
Neptune Systems$94.99Double junction probes place a second vessel inside the main electrolyte with a second internal junction. The means that even when the aquarium water eventually begins to make its way in the first compartment, it still has to go through the second... -
Double Junction Lab Grade ORP Probe - Neptune Systems
Neptune Systems$104.99Double junction probes place a second vessel inside the main electrolyte with a second internal junction. The means that even when the aquarium water eventually begins to make its way in the first compartment, it still has to go through the second... -
35" Liquid Level Sensor (LLS-35) - Neptune Systems
Neptune Systems$109.99The largest of the LLS sensors is the 35″ sensor. This sensor is to be used for large reservoirs that are often utilized for saltwater reservoirs for manual and automatic water changes. Never before offered in the aquarium industry...