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 MA991B/1 Combined glass pH electrode MA991B/1 Price on request MA916B/1 Combined glass pH electrode, refill, BNC, 1m Price on request MA920B/1 Combined pH electrode MA920B/1 Price on request