Peroxide Test Strips, 0-400ppm H2O2

SKU: 33815-P400

$20.95USD or lower Each

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[4.7]   11 Reviews    | Write a Review

Buy Indigo® 0-400ppm hydrogen peroxide test strips to ensure proper dilution of "food grade" peroxide used in hot tubs, swimming pools & spas. Buy just 3 & save with our 3 year minimum guaranteed shelf life.

Full documentation including Certificate of Analysis, Stability & SDS; Certificate of Conformance on request. Be prepared for any health & safety audit or inspection.

See the Related Image section below for just a few of the applications for the 400ppm hydrogen peroxide test strip: Pools, Greenhouses, Hot Tubs-Jacuzzis & Dairy.


Add Indigo® 400 ppm hydrogen peroxide test strips to your hot tub maintenance checklist. This is our best hot tub test strip for measuring hydrogen peroxide levels. It covers the lower end, 100ppm, for daily maintenance and the upper level of 400ppm for shock treatment.

Having trouble diluting your 35% food grade hydrogen peroxide? Use our free hydrogen peroxide dilution calculator to take out the guesswork.

Related information or images

30 second response with readings at 0-100-200-300-400ppm for concentration levels of hydrogen peroxide.

  • Indigo® test strips have a guaranteed minimum 3 year shelf life but are stored in desiccant lined vials so actual shelf life can be 5+ years.
  • For technical explanation, read: Sanitizer Test Strip Expiration; Good Today, Dead Tomorrow?
  • The number of strips per vial (100) is approximate.
  • Suitable for detection of hydroperoxides and ether peroxides. Polymeric peroxides, which can form in diethylether, are not detected. Organic peroxides, such as di-tert-butyl peroxide, dicumyl peroxide or tert-butyl perbenzoate, either do not react or react with significantly reduced sensitivity.

Test Strip Documentation

Stability Statement Certificate of Analysis SDS Calibration Fluid CoA
Indigo Hydrogen Peroxide Test Strips 400ppm Stability Statement Indigo Hydrogen Peroxide Test Strips 400ppm Certificate of Analysis Indigo Hydrogen Peroxide Test Strips 400ppm SDS Calibration Fluid Certificate of Analysis

Indigo® brand hydrogen peroxide test strips are Made in USA & tested for accuracy using NIST compliant standards.

Reviews (11)

SERVICE IS GOOD.. While I understand availability can be tricky, resulting in a price increase, you've never been out of stock , and the price has increased. this wouldn;t bother me otherwise but.. you're the only company that sells the higher range strips. i have spent hours looking online looking for another supplier. i feel your pricing reflects the monopoly you seem to hold. i'd like to get better pricing as a we purchase them for resale. i've also ordered from you guys for 7-8 years.. i know our volume is minimal, but that's mainly because we don;t have a pile of peroxide clients. thanks

— tom
— Indigo:

Not sure who you are comparing us to but the only "monopoly" we have is on the best prices for 5 or more & a 3 year guaranteed shelf life.  Actually, we've held prices from Jan. 2019 till end of 2021 and, as you noted, we are never out of stock!

Product arrived in a timely fashion and was just what I expected, at a great price.
— Warren
Great product! Customer service was wonderful helping me figure out which test kit I needed. Thanks!
— Kate
— Indigo: Glad we could help.
Super useful for Hot Tub. Price is good and service is awesome.
— Jonathan
Great for hydrogen peroxide pools... easy, cheap and great service. Rich
— rich
Great product, awesome service, H2O2 is so much better than Chlorine, and these strips are the perfect tool for keeping us in clean hot water...
— Jon
Super Product! We order for some of our hot tub customers who use peroxide in their tubs. No complaints. Easy ordering and fast, reliable service!
— Wheatland Machine
Ordered the test strips and they arrived promptly just a few days later. Great company to order from. Test strips are an easy way to maintain the correct balance of peroxide in our hot tub.
— Cheryl
Quick results and so easy to use and read.
— 400ppm Peroxide Strips
Test strips work great, fast and easy
— Les

Love these strips! Quick , Easy and Accurate way to maintain the peroxide level in our hotub! We always re-order on the last container so we are never without them!! AnnB

— 400ppm Peroxide Strips, 50/Pk
— Indigo:

If you are using 1 strip per week, you can actually save a little bit buying 2 at a time.

Our discounts start at just 2! And it costs the same to ship 2 as 1.

Review This Product Now!