--- product_id: 60983199 title: "WirthCo 20420 Funnel King Waterboy Battery Filler, 2 quart (Double Action Valve-Shut Off Nozzle) Blue" brand: "wirthco" price: "€ 120.53" currency: EUR in_stock: true category: "Wirth Co" url: https://www.desertcart.gr/products/60983199-wirthco-20420-funnel-king-waterboy-battery-filler-2-quart-double store_origin: GR region: Greece --- # 2 quart capacity Durable injection-molded blue body Double-action valve shutoff nozzle WirthCo 20420 Funnel King Waterboy Battery Filler, 2 quart (Double Action Valve-Shut Off Nozzle) Blue **Brand:** wirthco **Price:** € 120.53 **Availability:** ✅ In Stock ## Summary > 💧 Master your battery game with precision and power! ## Quick Answers - **What is this?** WirthCo 20420 Funnel King Waterboy Battery Filler, 2 quart (Double Action Valve-Shut Off Nozzle) Blue by wirthco - **How much does it cost?** € 120.53 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/60983199-wirthco-20420-funnel-king-waterboy-battery-filler-2-quart-double) ## Best For - wirthco enthusiasts ## Why This Product - Trusted wirthco brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Heavy-duty injection-molded construction ensures durability and reliability in demanding environments. - • **Precision Flow Control:** Double-action Battery Doctor nozzle prevents overfilling and drips for mess-free battery maintenance. - • **Trusted Industry Leader:** From WirthCo, a globally recognized manufacturer known for award-winning, state-of-the-art tools. - • **Generous 2-Quart Capacity:** Fill larger batteries efficiently without constant refills, saving you time on the job. - • **Professional Grade Design:** Engineered with the modern professional in mind, combining functionality with ease of use. ## Overview The WirthCo 20420 Funnel King Waterboy Battery Filler is a 2-quart capacity, heavy-duty battery filling tool featuring a double-action shutoff nozzle that prevents overfilling and dripping. Designed for professionals, its durable injection-molded body and precision valve make battery maintenance safer and more efficient. ## Description The Battery Doctor Waterboy Battery Filler (part number 20420) is a 2 quart fluid bottle for adding water to battery cells. The Battery Doctor double action valve with shut-off nozzle stops the flow automatically when a cell is full, helping prevent overfilling and reducing drips around battery terminals.The heavy-duty injection molded body provides a rigid, one-piece reservoir that stands up to repeated use in shop, garage, and service environments. The 2 quart capacity gives enough volume to top off multiple cells before refilling, making routine battery watering faster during maintenance.Specifications: 2 quart capacity, heavy-duty injection molded body, double action shut-off valve and nozzle, blue color, product weight approximately 0.49 pounds. Sold as a single battery filler. ## Features - CONTROLLED BATTERY WATERING - Waterboy battery filler delivers water directly into battery cells with a 2 quart reservoir, giving enough capacity to service multiple cells in one fill. - AUTO SHUT-OFF NOZZLE - Battery Doctor double action valve with shut-off nozzle automatically stops the flow when the cell reaches the correct level, helping prevent overfilling and dripping. - HEAVY-DUTY MOLDED BODY - Injection molded construction creates a rigid, one-piece bottle that holds up to repeated shop and garage use around battery service areas. - SHOP, GARAGE, AND FLEET USE - Useful for topping off batteries during routine maintenance in automotive, marine, RV, and powersports service work. - WIRTHCO PART NUMBER 20420 - Sold as a single 2 quart Waterboy battery filler in blue, weighing approximately 0.49 pounds, ready to use out of the package. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01F306FR8 | | Best Sellers Rank | #1,731,778 in Automotive ( See Top 100 in Automotive ) #1,112 in Oil Funnels | | Brand | WirthCo | | Brand Name | WirthCo | | Capacity | 2 quarts | | Color | Blue | | Customer Reviews | 4.3 out of 5 stars 24 Reviews | | Global Trade Identification Number | 00010054204200 | | Included Components | Battery Filler | | Item Dimensions W x H | 5"W x 8.8"H | | Item Type Name | Funnel King | | Manufacturer | Wirthco Engineering Inc. | | Material | Plastic | | Model Number | 20420 | | Number of Items | 1 | | Number of Packs | 1 | | Part Number | 20420 | | Product Dimensions | 5"W x 8.8"H | | UPC | 010054204200 | | Unit Count | 1 Count | | Warranty Description | 1 year | ## Product Details - **Brand:** WirthCo - **Color:** Blue - **Material:** Plastic - **Capacity:** 2 Quarts - **UPC:** 010054204200 ## Images ![WirthCo 20420 Funnel King Waterboy Battery Filler, 2 quart (Double Action Valve-Shut Off Nozzle) Blue - Image 1](https://m.media-amazon.com/images/I/71ZU2PIB9-L.jpg) ![WirthCo 20420 Funnel King Waterboy Battery Filler, 2 quart (Double Action Valve-Shut Off Nozzle) Blue - Image 2](https://m.media-amazon.com/images/I/71l-3GAmUsL.jpg) --- ## 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.gr/products/60983199-wirthco-20420-funnel-king-waterboy-battery-filler-2-quart-double](https://www.desertcart.gr/products/60983199-wirthco-20420-funnel-king-waterboy-battery-filler-2-quart-double) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-10-31*