---
product_id: 444622927
title: "Pentair R171016 Rainbow 300 Automatic Chlorine/Bromine Off-Line Pool and Spa Feeder"
brand: "pentair"
price: "€ 52.43"
currency: EUR
in_stock: false
reviews_count: 5
url: https://www.desertcart.nl/products/444622927-pentair-r171016-rainbow-300-automatic-chlorine-bromine-off-line-pool
store_origin: NL
region: Netherlands
---

# Treats up to 48,000 gallons Automatic off-line operation Retrofits existing pools easily Pentair R171016 Rainbow 300 Automatic Chlorine/Bromine Off-Line Pool and Spa Feeder

**Brand:** pentair
**Price:** € 52.43
**Availability:** ❌ Out of Stock

## Summary

> 💦 Keep your pool pristine without lifting a finger!

## Quick Answers

- **What is this?** Pentair R171016 Rainbow 300 Automatic Chlorine/Bromine Off-Line Pool and Spa Feeder by pentair
- **How much does it cost?** € 52.43 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/444622927-pentair-r171016-rainbow-300-automatic-chlorine-bromine-off-line-pool)

## 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

- • **Safe & Sealed System:** Completely enclosed design prevents gas escape—no special venting needed.
- • **Effortless Automation:** Operates on the pressure side of your pump for seamless, hands-free chemical feeding.
- • **Universal Compatibility:** Uses standard 1/4-inch feeder hoses and fittings for quick, no-fuss installation.
- • **Built to Last & Certified:** NSF listed with a robust 50 PSI max operating pressure for reliable pool care.
- • **Massive Capacity, Minimal Hassle:** Holds 11 large or 98 small chlorine/bromine tablets for long-lasting sanitation.

## Overview

The Pentair Rainbow 300 is an automatic off-line feeder designed for pools and spas, capable of treating 12,000 to 48,000 gallons. It holds up to 11 large or 98 small chlorine/bromine tablets, operates on the pressure side of pumps, and features a fully enclosed system requiring no special venting. Easy to retrofit with standard 1/4-inch hoses and fittings, it’s NSF listed and supports up to 50 PSI, ensuring safe and efficient chemical distribution.

## Description

This Rainbow 300 automatic chlorine/bromine off-line pool and spa feeder holds 11 large or 98 small tablets, treats 12,000 to 48,000 gallons. Operates on pressure side of pumps. Uses 1/4-inch feeder hoses, control valve and fittings. Completely enclosed system, no special venting required. No escaping gases and retrofits into existing pools or spas. NSF listed and 50 PSI maximum operating pressure. Measures 14-3/4-inch length by 23-inch height by 22-1/4-inch width.

## Features

- Rainbow 300 automatic chlorine/bromine off-line pool and spa feeder
- Holds 11 large or 98 small tablets; treats 12,000 to 48,000 gallons
- Operates on pressure side of pumps
- Uses 1/4-inch feeder hoses, control valve and fittings
- Measures 14-3/4-inch length by 23-inch height by 22-1/4-inch width

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Color | Black |
| Height | 21 inches |
| Length | 7 inches |
| Weight | 4.4 Pounds |
| Width | 7 inches |
| Number of Items | 1 |
| Batteries Included? | No |
| Brand | Pentair |
| Manufacturer | Pentair |
| Item model number | R171016 |
| Product Dimensions | 37.47 x 56.52 x 58.42 cm; 1.36 kg |
| ASIN | B001DNVN5E |

## Product Details

- **Brand:** Pentair
- **Item Weight:** 3 Pounds
- **Item Form:** Tablet
- **Product Benefits:** Maintains Clean Sanitized Water
- **UPC:** 788379004217

## Images

![Pentair R171016 Rainbow 300 Automatic Chlorine/Bromine Off-Line Pool and Spa Feeder - Image 1](https://m.media-amazon.com/images/I/51yQQsBwpgL.jpg)
![Pentair R171016 Rainbow 300 Automatic Chlorine/Bromine Off-Line Pool and Spa Feeder - Image 2](https://m.media-amazon.com/images/I/51pXfRSCq7L.jpg)
![Pentair R171016 Rainbow 300 Automatic Chlorine/Bromine Off-Line Pool and Spa Feeder - Image 3](https://m.media-amazon.com/images/I/51VMV3E0ZtL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    Works as expected
  

*by T***M on Reviewed in the United States on 27 August 2023*

I bought this to replace a previous model that had failed after 6 years of use. I probably would have only needed to replace the valves. The proviso model was pretty clogged up on the inside but I imagine that is just from years of use and debris from the tablets. Easy to install and works as I would expect.

### ⭐⭐⭐⭐⭐ 







  
  
    Great product
  

*by B***. on Reviewed in Canada on 17 August 2018*

Great product! Installed this for an indoor pool where the chlorine demand is low. I was able to turn it way down and get just the right amount of chlorination. The previous owner had installed a Hayward chlorinator which was better for outdoor pools and tended to over-chlorinate. Would highly recommend this product.

### ⭐⭐⭐⭐⭐ 







  
  
    Replacement
  

*by D***A on Reviewed in the United States on 31 January 2024*

Same as the original.

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.nl/products/444622927-pentair-r171016-rainbow-300-automatic-chlorine-bromine-off-line-pool](https://www.desertcart.nl/products/444622927-pentair-r171016-rainbow-300-automatic-chlorine-bromine-off-line-pool)

---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-17*