Oakton Standard pH 4.01 Buffer Solution, 500 ml Water Samplers low-pressure rubber/polyethylene diffuser hose is

low-pressure rubber/polyethylene diffuser hose is made for aquaculture

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Oakton Standard pH 4.01 Buffer Solution, 500 ml Water Samplers low-pressure rubber/polyethylene diffuser hose isProduct Code: C10701 MPN: WD 00654 00 Oakton buffers for meters with 0. 01 resolution are standardized against NIST traceable pH references within 0. 01 pH at 77F (25C). Store buffers away from direct sunlight. Sold in individual bottles; 500 mL bottles. pH 4. 01, Pink