LaMotte Dissolved Oxygen Test Kit DeWitt These valves are very well-made

These valves are very well-made and meet an important need — no matter what brand air pump you plan to use

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Some minor assembly is required

75" HP-120LL 120 Lpm @ 17

EasyPro Filter Material is perfect for filtering solid debris before water enters biological filtration

LaMotte Dissolved Oxygen Test Kit DeWitt These valves are very well-madeThis kit tests for Dissolved Oxygen using the Direct Reading Titrator method. Range sensitivity is 0 10 ppm 0. 2 ppm O2. NOTE: This item drop ships straight from the manufacturer and can take from two to four weeks to ship.