Pentair R161004 OTO #2 test solution bottle for chlorine and bromine testingPentair OTO #2 Test Solution In stock$699
Pentair R161004 OTO #2 test solution bottle for chlorine and bromine testing
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Pentair OTO #2 Test Solution

Ask a questionMPN R161004, R161007
$699
In stock
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Quick overview

  • Tests chlorine and bromine The OTO #2 reagent reads sanitizer level in pool and spa water.
  • Keeps sanitizer honest Water that is not tested drifts, and drift is what turns a clear pool green.
  • Simple to run Follow the instructions supplied with your test kit and read the color against the scale.
  • Pentair reagent Carried under Pentair part numbers R161004 and R161007.
  • Refills a kit you already own This is the reagent bottle only, not a complete test kit.
  • Check the size Listings for this item carry both a 2 oz and a 1/2 oz size, so confirm which you need.
Full description and specifications ↓

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Product details

OTO #2 is the reagent used to read chlorine and bromine in pool and spa water. This is the Pentair solution, listed under part numbers R161004 and R161007.

Why test

Sanitizer is the one number that does not hold still. It burns off in sun, gets used up by swimmers and rain, and a pool that read fine last week can be short by the weekend. Testing on a schedule is what tells you to dose before the water turns, rather than after.

Before you order

This is the reagent bottle alone, not a complete test kit, so it suits topping up a kit you already own. Note that the size for this item is published two ways, as 2 oz and as 1/2 oz. Both figures appear in the source data, so confirm the size against what your kit takes.

Specifications
Brand Pentair
Manufacturer part number R161004, R161007
UPC 788379002923
Type OTO #2 test solution
Tests for Chlorine and bromine
Size Listed both as 2 oz and as 1/2 oz, confirm before ordering
Supplied as Reagent solution only
Shipping weight 0.05 lb
Ships Parcel

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Questions and answers

What people ask about this product, answered by our pool techs.

What does OTO #2 test for?
Chlorine and bromine levels in pool and spa water.
What size bottle is this?
The source data carries two sizes for this item, 2 oz and 1/2 oz. Both readings are published, so confirm the size you need before you order.
Is a test kit included?
No. This is the reagent solution on its own, meant to refill a kit you already have.
Which part number is it?
It is listed under Pentair R161004 and R161007.
Ask your own question