--- product_id: 11011229 title: "PLT-12 4.5-Gallon Potable Water Expansion Tank 3/4\" Male Inlet" brand: "watts" price: "€ 496.32" currency: EUR in_stock: true category: "Watts" url: https://www.desertcart.gr/products/11011229-plt-12-4-5-gallon-potable-water-expansion-tank-3 store_origin: GR region: Greece --- # 4.5-gallon capacity 3/4" male stainless steel inlet 150 psi max pressure rating PLT-12 4.5-Gallon Potable Water Expansion Tank 3/4" Male Inlet **Brand:** watts **Price:** € 496.32 **Availability:** ✅ In Stock ## Summary > 💧 Keep your water system flawless — because every drop counts! ## Quick Answers - **What is this?** PLT-12 4.5-Gallon Potable Water Expansion Tank 3/4" Male Inlet by watts - **How much does it cost?** € 496.32 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/11011229-plt-12-4-5-gallon-potable-water-expansion-tank-3) ## Best For - watts enthusiasts ## Why This Product - Trusted watts brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Durable Steel Build:** Carbon steel tank with epoxy finish ensures long-lasting, corrosion-resistant performance. - • **Universal Compatibility:** Works seamlessly with gas, oil, or electric direct-fired water heaters and storage tanks. - • **Optimized Thermal Control:** Absorbs water expansion to maintain balanced pressure and protect your system. - • **Certified Safety & Quality:** IAPMO listed and ANSI/NSF 61 certified for potable water systems you can trust. - • **Easy, Versatile Installation:** Mounts directly to supply piping with a reliable 3/4" male stainless steel connection. ## Overview The Watts PLT-12 is a 4.5-gallon potable water expansion tank designed to manage thermal expansion in residential and commercial water heating systems. Featuring a durable carbon steel construction with epoxy finish, a 3/4" stainless steel inlet, and a maximum pressure rating of 150 psi, it ensures safe, balanced water pressure. Compatible with all direct-fired water heaters and certified for potable water use, this tank offers reliable, long-lasting performance with easy installation. ## Description Product Description Watts Water Technologies 67371 PLT-12 4.5-Gallon Potable Water Expansion Tank From the Manufacturer Series PLT Potable Water Expansion Tanks are designed to absorb the increased volume of water created by thermal expansion and to maintain balanced pressure throughout the potable water supply system. Series PLT tanks feature a pre-pressurized steel tank with an expansion membrane that prevents contact of the water with the air in the tank. This prevents loss of air to the water and ensures long and trouble-free life for the system. These tanks may be used with all types of Direct Fired Hot Water Heaters (gas, oil or electric) and hot water storage tanks. IAPMO listed and ANSI/NSF 61 certified. Maximum Pressure: 150psi (10 bar) ## Features - WATER EXPANSION TANK: With a generous 4.5 tank gallon volume, the Watts Potable Water Expansion Tank is designed for use in commercial and residential water heating systems to control the thermal expansion of hot water and maintain safe pressures. - VERSATILE MOUNTING: This potable water expansion tank is designed for easy installation, mounting directly to the supply piping. It features a 3/4-inch male connection and a stainless steel inlet. - DURABLE CONSTRUCTION: This tank is constructed from high-quality carbon steel with an epoxy finish, ensuring long-lasting performance. It is also equipped with a durable expansion membrane that minimizes the loss of the air charge. - COMPATIBILITY: These tanks may be used with all types of Direct Fired Hot Water Heaters (gas, oil or electric) and hot water storage tanks. Comes with a maximum pressure of 150psi (10 bar). - EVERY DROP COUNTS: Water. It's in our name and close to our hearts. Everything we design is made to keep the Earth's most precious resource safer, cleaner, and more useful for our customers. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B002JEQGYO | | Best Sellers Rank | #19,207 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Hydraulic Tanks & Reservoirs | | Brand Name | Watts | | Capacity | 4.5 gallons | | Color | Gray | | Customer Reviews | 4.7 4.7 out of 5 stars (451) | | Global Trade Identification Number | 00098268095753 | | Included Components | Watts Potable Water Expansion Tank | | Item Dimensions W x H | 11.1"W x 14.7"H | | Item Highlight | Carbon Steel Butyl Diaphragm Pre-Pressurized 150 Psi Maximum Compatible with Gas Oil and Electric Heating Systems | | Item Type Name | Expansion Tank | | Manufacture Year | 2023 | | Manufacturer | Wilo | | Manufacturer Part Number | 67371 | | Material Type | Steel | | Model Number | PLT-12 | | Number of Items | 1 | | Number of Packs | 1 | | Power Source | hydraulic_powered | | Style Name | Potable | | UPC | 098268095753 | | Unit Count | 1 Count | ## Product Details - **Brand:** Watts - **Capacity:** 4.5 gallons - **Color:** Gray - **Power Source:** hydraulic_powered - **Product Dimensions:** 11.1"W x 14.7"H ## Images ![PLT-12 4.5-Gallon Potable Water Expansion Tank 3/4" Male Inlet - Image 1](https://m.media-amazon.com/images/I/51qBGIh6GsL.jpg) ## Available Options This product comes in different **Size, Style** options. ## Frequently Bought Together - Watts Water Technologies PLT-12 WATTS Expansion Tank, 4.5 Gallon, Gray - Taco 400-4 1/8-Inch-NPT Float Air Hy-Vent - Watts 0342691 30 PSI Pressure Relief Valve, Bronze, 3/4" 335 M2-030 --- ## 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/11011229-plt-12-4-5-gallon-potable-water-expansion-tank-3](https://www.desertcart.gr/products/11011229-plt-12-4-5-gallon-potable-water-expansion-tank-3) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-10-13*