can i use with all clear test? i was adding 5 drops and comparing on strip. sounds like i can't.

Should work the same. If you used five drops before, you should receive similar results. Normal ranger is 7.4 to 7.6.

does this replace small bottles of pleonol red where you just put 3 drops in test kit or is it to be used in special test kits where U need 2 mix

This is a large bottle of the same thing, you can use it to refill your little dropper bottle. As long as you are using the Pentair Rainbow brand already. The Pentair Rainbow brand OTO is the clear of this test. You cannot mix brands the test will not be accurate.

What is the concentration of Phenol Red in this solution?

I did not see anything on the bottle that would answer your question. I found it to be less concentrated than the standard Phenol Red that comes with test kits. It does have a Chlorine stabilizer in it. I found through the trial and error method, that in using the same test vial for chlorine and putting in 7 drops as opposed to the recommended 5, the reading was the same as the reading using 5 drops in the larger PH vial in the test kit with the solution I saved from the kit so I could make the comparisons. It took a few trials, but the money saved was worth it because you get the neutralizer already in the solution so you need not buy that separately. It does not come with a eyedropper so you will need to get one or (not recommended) pour some into the vial that came with your test kit. Hope this helps.

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Pentair R161126 pH Solution Phenol Red with Chlorine Neutralizer, 16-Ounce

Product ID: 3820073

Details

Brand
Pentair
Global Trade Identification Number
Item Form
Liquid
Product Benefits
Maintains pool
UPC
788379003258

📏Compact 7.75x10.25x8.5 inch size

🧪16 fl oz precision liquid

♻️Chlorine neutralizer included

€ 54.72

Duties & taxes included

In stock

Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Slovakia.

Secure transaction

Description

💧 Keep your pool perfectly balanced — because your weekend deserves crystal clarity!

TRUSTED PENTAIR QUALITY - Backed by a leading brand with proven reliability in pool care essentials.
GENEROUS 16 OUNCE SUPPLY - Ample volume to keep your testing routine consistent without frequent repurchases.
PRECISION P H TESTING POWER - Accurately balances your pool and spa water for a pristine swim experience.
CHLORINE NEUTRALIZER BUILT IN - Safely neutralizes chlorine for reliable phenol red readings every time.
COMPACT CONVENIENT PACKAGING - Sized perfectly for easy storage and quick access when you need it most.

Pentair's 16-ounce pH Solution with phenol red and chlorine neutralizer offers precise, reliable water testing for pools and spas. Its compact bottle design ensures easy handling and storage, while the integrated chlorine neutralizer guarantees accurate pH readings. Ideal for maintaining safe, clean water, this solution is a must-have for any pool owner committed to effortless, professional-grade water care.

Specifications

Asin	B008HYNX2S
Best Sellers Rank	#261,290 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden) #564 in Swimming Pool Chlorine
Brand Name	Pentair
Customer Reviews	4.1 4.1 out of 5 stars (31) 4.1 out of 5 stars
Global Trade Identification Number	00788379003258
Item Form	Liquid
Manufacturer	Pentair
Manufacturer Part Number	R161126
Model Number	R161126
Number Of Items	1
Number Of Packs	1
Product Benefits	Maintains pool and spa pH balance for cleaner, safer water
Unit Count	16 Fluid Ounces
Upc	788379003258

Reviews

User

Affordable

This makes pool test much more affordable

27.02.2026

User

Muy bueno

Buen producto

10.10.2026

User

Refill your 1/2 oz. or 1 oz. bottles!

Quick delivery clear across the country and I can refill my 1 oz. bottle easily and economically for spa testing.

24.06.2020

User

Color change is off

The color change is off and it doesn't dissolve as readily as the solution that comes with the kit.

29.11.2019

User

Great deal

Buying in quantity saves a lot of money.

7.02.2017

User

Color me Red

Great price for the product. It's cheaper than other places.

6.02.2016

User

Three Stars

i suspect it was a good product.. i misread and ordered the wrong stuff.

3.09.2016

User

Works Well Once You Find The Right Mix

I had to do some trials with this solution. The reviewers that indicated that there was little color change were right. So I experimented and used my chlorine vial and put in the Pentair solution and the color was exactly the same as the Phenol Red solution I had left from my original test kit that came with my Spa. The bottom line is use same amount of water as you do testing chlorine or do your own comparison test as I did. Once you find the right combination you will save a lot of money using Pentair brand.

2.07.2015

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

€ 54.72

Duties & taxes included

In stock

Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Slovakia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

View all Trustpilot reviews