--- product_id: 5000723 title: "Pentair R171016 Rainbow 300 Automatic Pool and Spa Feeder" price: "€ 329.68" currency: EUR in_stock: true reviews_count: 10 url: https://www.desertcart.at/products/5000723-pentair-r171016-rainbow-300-automatic-pool-and-spa-feeder store_origin: AT region: Austria --- # Maintains Clean Water Tablet Form 3 lbs Weight Pentair R171016 Rainbow 300 Automatic Pool and Spa Feeder **Price:** € 329.68 **Availability:** ✅ In Stock ## Summary > 💦 Dive into Effortless Cleanliness! ## Quick Answers - **What is this?** Pentair R171016 Rainbow 300 Automatic Pool and Spa Feeder - **How much does it cost?** € 329.68 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/5000723-pentair-r171016-rainbow-300-automatic-pool-and-spa-feeder) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **NSF Certified:** Trust in a product that meets the highest safety standards. - • **User-Friendly:** Designed for easy operation, perfect for busy professionals. - • **Compact Design:** Space-saving design fits seamlessly into your pool setup. - • **No Venting Required:** Enjoy a hassle-free installation with no special venting needed. - • **Effortless Sanitation:** Keep your pool sparkling clean with minimal effort! ## Overview The Pentair R171016 Rainbow 300 Automatic Chlorine/Bromine Off-Line Pool and Spa Feeder is a compact, NSF-listed system designed to maintain clean and sanitized water effortlessly. Weighing just 3 pounds and utilizing tablet form sanitizers, this feeder requires no special venting, making it an ideal choice for pool owners seeking convenience and reliability. ## Description Pentair R171016 Rainbow 300 Automatic Chlorine/Bromine Off-Line Pool and Spa Feeder Review: Works great! Better than putting pucks in skimmer - It is critical to follow the instructions as well as to apply some common sense. One of the connections leaked right away from the compression on to the pool supply line. Looking at it, it was just off a bit at an angle, I had to hold it very straight while I retightened, no leak. the metal strap that hold the compress fitting bends as it is tightened, this is normal , one had to look at that bending to ensure the fitting is not held at an angle. If so, then loosen and reposition and retighten, this will eliminate the leak. Review: Excellent product - I have gotten fed up with the issues with the salt system and, at the end of the life of my chlorinator cell, I have decided to try the "analog" method with this device. I love it. First, it is well-made, as other Pentair equipment I have. It dissolves the chlorine pucks evenly and the control does allow to manage the amount of chlorine generated. My pool is about 55,000L and I use the settings between 3 and 4. The device uses around one chlorine puck a day at this level. Installation is very simple, and the resulting connections do not seem to leak or let the air in. Hard to say how the plastic valves will hold over time. I am thinking about just buying an extra part kit to keep it handy when I need it. Challenges: opening it to refill is hard, you need to hold the device in place and use a piece of wood or a special key to turn the head off, even after tightening it lightly with your hand. The power of air pressure. I will bolt this device to the floor to make it simpler. Another problem is that you do not know how much clorine is left inside. Knowing that it eats about one tab a day, I think the only way is to open it once a week and refill to the top. And, finally, the amount of chlorine is directly related to how long does your pump work and at what speed. If you make any changes to that, like running pump overnight exceptionally - you need to adjust for that. ## Features - 300 Series - Completely enclosed system - no special venting required - No escaping gases - Unions not included - All Rainbow Feeders are NSF Listed ## Technical Specifications | Specification | Value | |---------------|-------| | Best Sellers Rank | #62,679 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #1,618 in Pool & Spa Replacement Parts | | Customer Reviews | 4.4 out of 5 stars 557 Reviews | ## 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 Pool and Spa Feeder - Image 1](https://m.media-amazon.com/images/I/51yQQsBwpgL.jpg) ![Pentair R171016 Rainbow 300 Automatic Pool and Spa Feeder - Image 2](https://m.media-amazon.com/images/I/51pXfRSCq7L.jpg) ![Pentair R171016 Rainbow 300 Automatic Pool and Spa Feeder - Image 3](https://m.media-amazon.com/images/I/51VMV3E0ZtL.jpg) ![Pentair R171016 Rainbow 300 Automatic Pool and Spa Feeder - Image 4](https://m.media-amazon.com/images/I/51Xi61ZuyYL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works great! Better than putting pucks in skimmer *by M***S on December 17, 2024* It is critical to follow the instructions as well as to apply some common sense. One of the connections leaked right away from the compression on to the pool supply line. Looking at it, it was just off a bit at an angle, I had to hold it very straight while I retightened, no leak. the metal strap that hold the compress fitting bends as it is tightened, this is normal , one had to look at that bending to ensure the fitting is not held at an angle. If so, then loosen and reposition and retighten, this will eliminate the leak. ### ⭐⭐⭐⭐⭐ Excellent product *by N***V on September 19, 2025* I have gotten fed up with the issues with the salt system and, at the end of the life of my chlorinator cell, I have decided to try the "analog" method with this device. I love it. First, it is well-made, as other Pentair equipment I have. It dissolves the chlorine pucks evenly and the control does allow to manage the amount of chlorine generated. My pool is about 55,000L and I use the settings between 3 and 4. The device uses around one chlorine puck a day at this level. Installation is very simple, and the resulting connections do not seem to leak or let the air in. Hard to say how the plastic valves will hold over time. I am thinking about just buying an extra part kit to keep it handy when I need it. Challenges: opening it to refill is hard, you need to hold the device in place and use a piece of wood or a special key to turn the head off, even after tightening it lightly with your hand. The power of air pressure. I will bolt this device to the floor to make it simpler. Another problem is that you do not know how much clorine is left inside. Knowing that it eats about one tab a day, I think the only way is to open it once a week and refill to the top. And, finally, the amount of chlorine is directly related to how long does your pump work and at what speed. If you make any changes to that, like running pump overnight exceptionally - you need to adjust for that. ### ⭐⭐⭐⭐⭐ Replacement Perfection *by J***E on August 28, 2025* Perfect replacement for the original; super easy to install and it works great ## Frequently Bought Together - Pentair R171016 Rainbow 300 Automatic Chlorine/Bromine Off-Line Pool and Spa Feeder - Pentair R172023 8-Feet Tubing Replacement Rainbow Automatic Chlorine/Bromine Pool and Spa Feeder - Pentair R172061 Combination Check Valve and Elbow Replacement Rainbow Automatic Chlorine/Bromine Pool and Spa Feeder --- ## 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.at/products/5000723-pentair-r171016-rainbow-300-automatic-pool-and-spa-feeder](https://www.desertcart.at/products/5000723-pentair-r171016-rainbow-300-automatic-pool-and-spa-feeder) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-06-09*