Dosing Tip where the tip is immersed in the sample Back Catalog number: PC-1000-654 Availability: In the manufacturer's stock Price on request - + Recommended MA915B/2 pH glass electrode for with 2meter cable. Price on request MA991B/1 Combined glass pH electrode MA991B/1 Price on request MA916B/3 Combined glass pH electrode, refill, BNC, 3m Price on request