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The pK of a buffering agent is equivalent to the pH around which that buffer most strongly buffers
The SunSun HW-304A includes filter pads
From the SUN SUN brand
●High-strength wear-resistant shaft core
Aqua Illumination Hydra Flex Arm Size:18" The pK of a bufferingNow you can easily mount your Hydra 32 or 64 LED light with one of the simplest methods available; the Hydra LED Flex Arm. The sleek look of the mounting arm is enhanced by the silicone sleeve over the flexible portion of the mounting arm. The design of the arm mounting bracket lets the arm spin into the perfect position while holding the light securely, right where you want it. Each Flex Arm comes with clamps to secure the 32 or 64 series of LED
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