1/4" ID Peristaltic Pump Santoprene Tubing (TPE55S Back Catalog number: PC-5000-1177 Availability: In the manufacturer's stock Price on request - + Recommended MA920B/1 Combined pH electrode MA920B/1 Price on request MA913B/3 Combined Epoxy pH electrode MA913B/3 Price on request SE520 Conductivity/TDS probe with 1meter cable SE520 Price on request