--- product_id: 481752441 title: "Rachio 4ZULW-C 3rd Generation: Smart, 4 Zone Sprinkler Controller, Works with Alexa" brand: "rachio" price: "FREE" currency: GBP in_stock: false reviews_count: 5 url: https://www.desertcart.co.uk/products/481752441-rachio-4zulw-c-3rd-generation-smart-4-zone-sprinkler-controller store_origin: GB region: United Kingdom --- # 4 customizable watering zones Full smartphone control Patented weather intelligence Rachio 4ZULW-C 3rd Generation: Smart, 4 Zone Sprinkler Controller, Works with Alexa **Brand:** rachio **Price:** FREE **Availability:** ❌ Out of Stock ## Summary > 🌿 Water smarter, not harder — your yard’s new best friend! ## Quick Answers - **What is this?** Rachio 4ZULW-C 3rd Generation: Smart, 4 Zone Sprinkler Controller, Works with Alexa by rachio - **How much does it cost?** FREE with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/481752441-rachio-4zulw-c-3rd-generation-smart-4-zone-sprinkler-controller) ## Best For - rachio enthusiasts ## Why This Product - Trusted rachio brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **DIY Friendly Setup:** Install in under 30 minutes with no special tools—compatible with 99% of systems - • **Smart Weather Savvy:** Automatically skips watering during rain, wind, or freeze—save water effortlessly - • **Zero Subscription Hassle:** No monthly fees or hidden app charges—smart watering made simple - • **Anywhere, Anytime Control:** Manage your sprinklers remotely via an intuitive app for ultimate convenience - • **Precision Hydration Mastery:** Tailors watering by plant, soil & sun for a lush yard and lower bills ## Overview The Rachio 4ZULW-C 3rd Generation is a smart, 4-zone sprinkler controller designed for professional-grade lawn care. It features patented weather intelligence to optimize watering schedules based on real-time conditions, supports full smartphone control without monthly fees, and offers easy DIY installation compatible with most existing systems. Perfect for eco-conscious millennials seeking a beautiful yard with minimal effort and maximum savings. ## Description The product voltage arrange is 120V Review: Convenient use and Easy install - Easy to install. Excellent app. Water efficient since it's connected to the local weather network (no need for rain sensor). Review: Great product - I was scared to try to install it myself but once I followed instructions - it was not difficult. Had problem adding device but I called support and they were able to help right away. East install and setup ## Features - SMART SPRINKLER CONTROLLER - Rachio invented the smart sprinkler category and continues to be the most trusted controller on the market. Only Rachio offers smart schedules that include plant type, soil type, sun exposure, and more. - WORRY-FREE WATERING - Rachio tailors your watering schedule to the specific needs of your yard and plants, providing the right amount of water no matter the landscape. Ensure a beautiful yard and lower your water bill at the same time. - NO MONTHLY FEES - Rachio comes complete and ready to use, without any extra charges or app subscription fees. - EXCLUSIVE WEATHER TECHNOLOGY - Patented Weather Intelligence automatically skips unnecessary watering with features like rain skip, wind skip, freeze skip, and more. - CONTROL FROM YOUR PHONE - Manage your watering from anywhere with the easy-to-use app. Run sprinklers, set and view upcoming schedules, and see your estimated outdoor water usage. - FAST and EASY INSTALLATION - DIY installation in 30 minutes or less with no special tools needed. Compatible with 99% of existing sprinkler controllers. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BCHF917X | | Best Sellers Rank | 406,961 in Garden ( See Top 100 in Garden ) 131 in Automatic Irrigation Controllers | | Brand | RACHIO | | Colour | White | | Customer Reviews | 4.6 out of 5 stars 719 Reviews | | Display Type | Digital | | Included Components | Controller, power supply, quick start guide, screws and drywall anchors | | Item Dimensions L x W x H | 23.1L x 3.6W x 14.2H centimetres | | Item Type Name | Sprinkler Controller, Works With Alexa | | Item Weight | 1 Pounds | | Item weight | 1 Pounds | | Manufacturer | Rachio | | Manufacturer Part Number | 4ZULW-C | | Material | Plastic | | Model Number | 4ZULW-C | | Product dimensions | 23.1L x 3.6W x 14.2H centimetres | | UPC | 850028614433 | | Unit Count | 1.0 count | | Voltage | 120 Volts (AC) | ## Product Details - **Colour:** White - **Brand:** RACHIO - **Voltage:** 120 Volts (AC) - **Product dimensions:** 23.1L x 3.6W x 14.2H centimetres - **Material:** Plastic ## Images ![Rachio 4ZULW-C 3rd Generation: Smart, 4 Zone Sprinkler Controller, Works with Alexa - Image 1](https://m.media-amazon.com/images/I/51u5H5n5YrL.jpg) ![Rachio 4ZULW-C 3rd Generation: Smart, 4 Zone Sprinkler Controller, Works with Alexa - Image 2](https://m.media-amazon.com/images/I/71yfGbSY20L.jpg) ![Rachio 4ZULW-C 3rd Generation: Smart, 4 Zone Sprinkler Controller, Works with Alexa - Image 3](https://m.media-amazon.com/images/I/71ExgAox1DL.jpg) ![Rachio 4ZULW-C 3rd Generation: Smart, 4 Zone Sprinkler Controller, Works with Alexa - Image 4](https://m.media-amazon.com/images/I/81-8Z9pk6yL.jpg) ![Rachio 4ZULW-C 3rd Generation: Smart, 4 Zone Sprinkler Controller, Works with Alexa - Image 5](https://m.media-amazon.com/images/I/61EWBwXjFNL.jpg) ## Questions & Answers **Q: I have a zone that is under cover and never gets rain. Does the Rachio 3 allow for one zone to run regardless of rain while other zones don't?** A: Despite the answers above, the answer is YES. You can create a separate schedule just for the zone you desire and make it a fixed schedule. You can turn off all the features and that will make it run even if it’s raining or windy or whatever. Than create schedules for the rest of the zones with all the weather features you like. **Q: Does this have a setting for a delay between zones? The controller i'm replacing does not have this delay,it switches between zones fast, hammers pipe** A: Yes, at least with my gen 3, a feature to reduce water hammer will turn on the next zone 10 seconds early allowing no abrupt stop at the end of a zone run. Excerpt from Rachio help: What is Rachio's "Minimize Water Hammer" setting? With this setting, your Rachio Smart Sprinkler Controller will open the 'next' scheduled zone to run in a watering schedule, 10 seconds prior to the end time of the current zone that is running. **Q: Can it be hard wired from the modem/router with cat5 or 6? no wifi where it would be installed. does it have an ethernet data port?** A: No data port — BUT, it works on both 2.4 and 5Ghz bands of wifi. Works very well and connected very easily. Access point is through a wall about 25 feet away. **Q: Can each valve be set up as it's own zone with independent start times and durations?** A: You have to understand that each zone needs to have it’s own solenoid in order to control zones separately. Some homes use an index valve system, and you switch zones by turning off and on, and the water pressure turns the index valve to the next zone. That won’t work with Rachio or any of these kind of systems. You will need to remove the index valve, and rearrange each of the pvc pipes that connected to it. That can be accomplished with a days effort, but you’ll need pvc fittings, a pvc cutter and pvc cement, and a solenoid for each zone you have. Each solenoid has two wires, so you’ll also need sprinkler cable with two conductors for each zone. So for a 5 zone system, your cable needs 10 conductors. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Convenient use and Easy install *by M***F on 2 August 2025* Easy to install. Excellent app. Water efficient since it's connected to the local weather network (no need for rain sensor). ### ⭐⭐⭐⭐⭐ Great product *by V***J on 1 July 2024* I was scared to try to install it myself but once I followed instructions - it was not difficult. Had problem adding device but I called support and they were able to help right away. East install and setup ### ⭐⭐⭐⭐⭐ Easy install lots of cool features *by D***C on 29 June 2024* Physical install and wifi setup super easy, Zone setup, the app is a little opposite to how you think it would work , everything else has been great. Times schedules with the sunrise, temperatures, season, And the best part, I can test my zones with my phone! No more running back and forth. Works with home security system as well as its own app. ## Frequently Bought Together - Rachio 3rd Gen: Smart 4-Zone Sprinkler Controller, App Enabled Automated Water Scheduling, Alexa Compatible, DIY Simple & Fast Install - Rachio Smart Sprinkler Controller Weatherproof Outdoor Enclosure, Compatible with Rachio 3 Smart Controllers, also 2nd and 3rd Generation Compatible - Rachio 3: 8 Zone Smart Sprinkler Controller (Simple Automated Scheduling + Local Weather Intelligence. Save Water w/ Rain, Freeze & Wind Skip), App Enabled, Works w/ Alexa, Fast & Easy Install --- ## 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.co.uk/products/481752441-rachio-4zulw-c-3rd-generation-smart-4-zone-sprinkler-controller](https://www.desertcart.co.uk/products/481752441-rachio-4zulw-c-3rd-generation-smart-4-zone-sprinkler-controller) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-29*