Modified Colitag™ Presence-Absence Media, 100/pk Snap-Pack

HACH Modified Colitag™ is the fastest and most flexible presence-absence test available with two testing parameters. This enables drinking water facilities to conduct overnight tests and have EPA-approved results by morning.

• The fastest presence-absence test on the market at 16 hours
• One product supports 16- or 22-hour test methods
• Results are valid for 48 hours