CSKC50M Reagecon 50,000 µS/cm Conductivity Standard, 500ml Back Catalog number: 6210129 Availability: In the manufacturer's stock Price on request - + Recommended MA917B/1 Comb glass pH electrode, DJ, refill, BNC, 1m Price on request MA920B/1 Combined pH electrode MA920B/1 Price on request SE220 Double junction pH electrode SE220 Price on request