--- product_id: 11251948 title: "Kohler K-3978-0 Wellworth Elongated 1.6 gpf Toilet, White, Seat Not Included" brand: "kohler" price: "$2062.98" currency: USD in_stock: true url: https://www.desertcart.us/products/11251948-kohler-k-3978-0-wellworth-elongated-1-6-gpf-toilet store_origin: US region: United States of America --- # 12" rough-in standard fit 1.6 gpf powerful flush 3-bolt quick install Kohler K-3978-0 Wellworth Elongated 1.6 gpf Toilet, White, Seat Not Included **Brand:** kohler **Price:** $2062.98 **Availability:** ✅ In Stock ## Summary > 🚽 Elevate your bathroom game with flush power and style that won’t quit! ## Quick Answers - **What is this?** Kohler K-3978-0 Wellworth Elongated 1.6 gpf Toilet, White, Seat Not Included by kohler - **How much does it cost?** $2062.98 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/11251948-kohler-k-3978-0-wellworth-elongated-1-6-gpf-toilet) ## Best For - kohler enthusiasts ## Why This Product - Trusted kohler brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Setup:** Pre-installed 3-bolt tank system slashes installation time—get it done fast. - • **Flush Like a Pro:** Class Five® technology ensures bulk waste clearance with unmatched efficiency. - • **Comfort Meets Style:** Elongated bowl design for ergonomic comfort and sleek bathroom aesthetics. - • **Space-Savvy Dimensions:** Compact 30"x18" footprint fits seamlessly into modern and classic bathrooms alike. - • **Trusted American Innovation:** Since 1936, Wellworth delivers reliable performance with a 1.6-gallon high-efficiency flush. ## Overview The Kohler K-3978-0 Wellworth is a high-efficiency, elongated toilet featuring a powerful 1.6-gallon flush with Class Five® bulk waste removal technology. Designed for standard 12" rough-in installations, it offers a comfortable, ergonomic bowl shape and quick 3-bolt installation. Its compact dimensions and timeless white porcelain finish make it a versatile choice for any bathroom upgrade. ## Description Product Description A benchmark of American innovation and engineering, this Wellworth toilet displays graceful curves that fit a wide variety of bathroom motifs. A powerful 1. 6-gallon flush delivers strong, reliable performance, and the elongated bowl ensures comfort. From the Manufacturer Wellworth toilets have been an American benchmark for innovation and performance since 1936. A high-efficiency toilet at a surprisingly low price, the new-edition Wellworth elongated toilet brings graceful design to a wide range of bathroom styles, while. 2-1/8 inch fully glazed trapway ## Features - Elongated, standard height-toilet bowl - 12" rough-in - 30" (76. 2 cm) x 18" (45. 7 cm) x 28-3/4" (73 cm) - Class Five(R) - provides tremendous bulk waste flushing performance and best-in-class bowl cleanliness - 3-bolt Installation - Three pre-installed tank bolts save installation time ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B005E3Q2FK | | Best Sellers Rank | #769,638 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #238 in Two-Piece Toilets | | Brand Name | Kohler | | Color | White | | Customer Reviews | 4.1 4.1 out of 5 stars (62) | | Global Trade Identification Number | 00650531945662 | | Installation Method | Floor Mounted | | Item Dimensions D x W x H | 30"D x 18"W x 28.75"H | | Item Type Name | Toilet | | Item Weight | 0.2 Pounds | | Manufacturer | KOHLER | | Manufacturer Part Number | K-3978-0 | | Manufacturer Warranty Description | One-year limited warranty | | Material Type | Porcelain | | Model Number | K-3978-0 | | Seat Material | Plastic | | Shape | Oval | | UPC | 650531945662 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Kohler - **Color:** White - **Item Weight:** 0.2 Pounds - **Material:** Porcelain - **Product Dimensions:** 30"D x 18"W x 28.75"H ## Images ![Kohler K-3978-0 Wellworth Elongated 1.6 gpf Toilet, White, Seat Not Included - Image 1](https://m.media-amazon.com/images/I/31QgWdTIzeL.jpg) ![Kohler K-3978-0 Wellworth Elongated 1.6 gpf Toilet, White, Seat Not Included - Image 2](https://m.media-amazon.com/images/I/61Gtk3tsDhL.jpg) ![Kohler K-3978-0 Wellworth Elongated 1.6 gpf Toilet, White, Seat Not Included - Image 3](https://m.media-amazon.com/images/I/51A2pYgTjEL.jpg) ![Kohler K-3978-0 Wellworth Elongated 1.6 gpf Toilet, White, Seat Not Included - Image 4](https://m.media-amazon.com/images/I/617bCuHKymL.jpg) ![Kohler K-3978-0 Wellworth Elongated 1.6 gpf Toilet, White, Seat Not Included - Image 5](https://m.media-amazon.com/images/I/61w+ytJomSL.jpg) ## Questions & Answers **Q: I need to order a replacement tank cover. Which model is the tank cover?** A: According to the Kohler website, the Kohler K-3978-0 Wellworth Elongated 1.6 gpf Toilet is made up of the toilet bowl (K-4198) and the water tank (K-4468). I don't know the model number for just the tank cover. **Q: Is this a chair height toilet?** A: The rim on this model is 14.5" above the floor. Seat height will be slightly higher, depending on the model of seat used. Standard rim height for US toilets is 15", so this is slightly lower than most, and definitely lower than ADA toilets. **Q: what lid should I get for this toilet, the one suggested is "ice Gray' Is that white?** A: In my opinion Ice Grey would be light grey. The toilet is white. You can choose whichever color you want to match your decor. We chose white. **Q: does this come with toilet seat** A: I found out that it does not when I received the shipment. It actually comes in 2 separate boxes. Its not like a whole assembly like you would get from HD or Lowes. You can get the standard Kohler seat from HD or Lowes for less than $20 (the same one you would get in the whole toilet package). Don't forget the wax ring as well. It is hard to find this toilet with the 15" height from local stores which is why I ended up ordering it online. ## Frequently Bought Together - Kohler K-3978-0 Wellworth Elongated 1.6 gpf Toilet, White - Extra Thick Toilet Wax Ring Kit Include Closet Bolts, Bolt Caps, Thick Flange and Retainer Washers, Fits 3 Inch and 4 Inch Waste Lines for Toilet Gas Odor and Watertight Sealing - Fluidmaster 7530 Universal Better Than Wax Toilet Seal, Wax-Free Toilet Bowl Gasket Fits Any Drain --- ## 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.us/products/11251948-kohler-k-3978-0-wellworth-elongated-1-6-gpf-toilet](https://www.desertcart.us/products/11251948-kohler-k-3978-0-wellworth-elongated-1-6-gpf-toilet) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-15*