This 3-pack combo provides everything you need for one full year:

The Milwaukee food grade probe is specifically designed for the pH analysis of semisolid foods such as processed meats

Temperature Probe: Stainless steel (fixed

Improved flow rate – Faster filtration than standard pitcher filters

Choose the 5-Stage Filter 2-Pack if:

HM Digital SAL-1700 Aquarium Salinity Meter - SG/PPT/PSU/Temp for Saltwater Reef Tanks RO filter timer This 3-pack combo provides everythingProfessional Salinity Meter for Saltwater Aquariums & Reef Tanks The HM Digital SAL 1700 Aquarium Salinity Meter is the essential tool for maintaining optimal salinity levels in saltwater aquariums, reef tanks, and marine aquaculture. This professional grade digital meter measures salinity in multiple units (Specific Gravity, PPT, PSU) plus temperature, providing accurate, reliable readings to ensure the health and vitality of your fish, corals, and