---
product_id: 11124088
title: "Pentair R161046 No.1 OTO Solution, 8-Ounce"
brand: "pentair"
price: "€ 50.50"
currency: EUR
in_stock: false
reviews_count: 8
url: https://www.desertcart.pt/products/11124088-pentair-r161046-no-1-oto-solution-8-ounce
store_origin: PT
region: Portugal
---

# 8 oz Solution 7" x 12" x 8.25" Test Reagents Pentair R161046 No.1 OTO Solution, 8-Ounce

**Brand:** pentair
**Price:** € 50.50
**Availability:** ❌ Out of Stock

## Summary

> 💧 Dive into Clarity with Every Drop!

## Quick Answers

- **What is this?** Pentair R161046 No.1 OTO Solution, 8-Ounce by pentair
- **How much does it cost?** € 50.50 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/11124088-pentair-r161046-no-1-oto-solution-8-ounce)

## Best For

- pentair enthusiasts

## Why This Product

- Trusted pentair brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Convenient Size:** 8-ounce bottle fits perfectly in your lab or home setup.
- • **Easy Replacement:** Seamlessly replaces solution A for hassle-free testing.
- • **Precision Testing:** Ensure accurate water quality assessments with our No. 1 OTO solution.
- • **Versatile Application:** Ideal for various water testing needs, from pools to aquariums.
- • **Single Pack Efficiency:** Includes 1 bottle, perfect for individual or small-scale use.

## Overview

The Pentair R161046 No.1 OTO Solution is an 8-ounce test reagent designed for precise water quality testing. This solution replaces solution A and is packaged in a convenient single bottle, measuring 7 inches in length, 12 inches in height, and 8.25 inches in width, making it an essential tool for both professional and home use.

## Description

Test reagents No. 1 OTO solution. 8-ounces solution bottle. Replaces solution A. Measures 7-inch length by 12-inch height by 8-1/4-inch width.

Review: Chlorine Level Indicator Large Bottle - Good price considering how much it costs to buy the separate little bottles. I use frequently with hot tub, so need a good supply.
Review: Very best value - This is a godsend for pool monitoring. The little bottles are so expensive by comparison. Definitely buy an eye dropper bottle when you purchase this because some of the little bottles in the testing kits are not refillable.

## Features

- Test reagents No. 1 OTO solution
- 8-ounces solution bottle
- Includes 1 per pack
- Replaces solution A
- Measures 7-inch length by 12-inch height by 8-1/4-inch width

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B008HYNUHQ |
| Best Sellers Rank | #510,901 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #490 in Swimming Pool Clarifiers & Enzymes |
| Brand | Pentair |
| Brand Name | Pentair |
| Customer Reviews | 4.6 out of 5 stars 162 Reviews |
| Global Trade Identification Number | 00788379003104 |
| Item Volume | 236 Milliliters |
| Manufacturer | Pentair |
| Model Number | R161046 |
| Part Number | R161046 |
| UPC | 788379003104 |
| Volume | 236 Milliliters |

## Product Details

- **Brand:** Pentair
- **Item Volume:** 236 Milliliters
- **Manufacturer:** Pentair
- **UPC:** 788379003104
- **Global Trade Identification Number:** 00788379003104

## Images

![Pentair R161046 No.1 OTO Solution, 8-Ounce - Image 1](https://m.media-amazon.com/images/I/71tQRXRpyOL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Chlorine Level Indicator Large Bottle
*by T***Y on October 14, 2025*

Good price considering how much it costs to buy the separate little bottles. I use frequently with hot tub, so need a good supply.

### ⭐⭐⭐⭐⭐ Very best value
*by L***S on September 6, 2024*

This is a godsend for pool monitoring. The little bottles are so expensive by comparison. Definitely buy an eye dropper bottle when you purchase this because some of the little bottles in the testing kits are not refillable.

### ⭐⭐⭐⭐⭐ that it does not come with a dispenser to easily put three small drops in your chlorine gauge
*by K***E on June 8, 2015*

The cost savings is huge compared to buying the same solution in 1 oz or 1/2 oz bottles. Another reviewer complained, correctly, that it does not come with a dispenser to easily put three small drops in your chlorine gauge. When my 1 oz bottle of OTO ran out, instead of throwing out the dispenser squeeze bottle, I poured an ounce of this solution in a shot glass and sucked it up into the little old plastic squeeze bottle. And now I am dispensing 3 little drops of OTO to measure chlorine exactly as before.

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.pt/products/11124088-pentair-r161046-no-1-oto-solution-8-ounce](https://www.desertcart.pt/products/11124088-pentair-r161046-no-1-oto-solution-8-ounce)

---

*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-10-07*