#1 OTO SOLUTION 1 OZ

00-331-B 

The JED POOL TOOLS 00-232-B is an OTO (orthotolidine) solution used for testing free chlorine levels in pool and spa water. Supplied in a 0.5 oz bottle, this reagent produces a yellow color reaction when added to a water sample, allowing technicians and service pros to read chlorine concentration against a standard comparator. It is a direct-use consumable that fits into established pool water testing routines and requires no special equipment beyond a compatible test kit.

This reagent is suited for residential and light commercial pool and spa maintenance programs. Pool service technicians use OTO solution as part of routine water chemistry checks to verify sanitizer levels before adjusting chemical dosing. The 0.5 oz size is a standard replacement volume for common drop-test kits used in the field.

Key Features

• OTO formula produces a visible yellow color reaction proportional to free chlorine concentration
• 0.5 oz bottle provides a convenient field-use quantity for technicians
• Drop-test format requires no electronic instrumentation
• Designed as a replacement reagent for compatible chlorine test kits