Finding a reliable stock tank drain plug is essential for easy cleaning and water management in Rubbermaid stock tanks. This article highlights five compatible drain plug kits and accessories designed to fit Rubbermaid models, plus related options for galvanized and stainless steel tanks. Each product is evaluated based on compatibility, materials, durability, and ease of installation, helping you choose the right plug kit for long-term maintenance. The following selections prioritize standard 1-1/4″ and 1-1/2″ thread configurations, weather resistance, and complete kits with gaskets, tapes, and reducers where applicable.
| Product | Brand | Compatibility | Key Benefit |
|---|---|---|---|
| Stock Tank Drain Plug | Sxmprail Store | Rubbermaid 50/70/100/150/300 gal | Complete kit with gaskets and tapes |
| Behlen Country Tank Plug | Behlen Country Store | Galvanized tanks | 3/8-square drive option |
| Drain Plug Kit with Reducer & Brass Faucet | Sxmprail Store | Rubbermaid 50/70/100/150/300 gal | Includes reducer and faucet |
| 3/4″ Drain Valve Kit | Van Enterprises Store | Rain Barrels and Rubbermaid barrels | Bulkhead adapter and silicone seal |
| 304 Stainless Stock Tank Drain Kit | Brand Not Listed | Rubbermaid 50/70/100/150/300 gal | Premium 304 stainless steel |
Stock Tank Drain Plug for Rubbermaid Tanks

The Sxmprail Stock Tank Drain Plug is designed as a replacement for Rubbermaid stock tanks in 50/70/100/150/300 gallon capacities. It accommodates standard 1-1/4″ and 1-1/2″ threads and includes two rubber gaskets, a rubber outer ring, and pre-wrapped plumber’s tapes for a secure seal. The kit emphasizes weather resistance and a tight hold to prevent detachment under pressure, ensuring long-term durability across varied conditions. This plug kit is a practical choice for maintaining consistent drainage and reducing leaks in outdoor tanks.
Features include upgraded high-density ABS construction for enhanced hardness, wear-resistant threads, and a 8 mm thick nut for deeper threading. The design aims to deliver a reliable seal against high water pressure and temperature resilience from -40 °C to 70 °C, making it suitable for diverse climates. This product focuses on compatibility and long-lasting performance, making it a go-to option for routine maintenance of Rubbermaid stock tanks.
Behlen Country Tank Plug for Galvanized Tanks

The Behlen Country TPGZ Tank Plug is designed for galvanized tanks and features a 3/8-inch square drive for secure tightening. While primarily marketed for galvanized tanks, it serves as a robust option for various outdoor setups where a solid, metal-based plug is preferred. This plug emphasizes straightforward installation and compatibility with standard fittings, offering a reliable seal for maintenance and drainage tasks in steel or galvanized tanks.
Considerations include material type (galvanized vs. plastic), drive compatibility, and ease of installation. For users needing a metal plug with simple drive access, this option provides durability and a strong seal, suitable for regular draining of galvanized stock tanks. It may be preferred where metal hardware is favored for longevity in outdoor environments.
Stock Tank Drain Plug Kit with Reducer and Brass Faucet

This comprehensive drain plug kit for Rubbermaid stock tanks includes a 1-1/4″ x 3/4″ pipe reducer, a 3/4″ brass faucet, two rubber gaskets, a rubber outer ring, and pre-wrapped plumber’s tapes. The kit pairs a 1-1/4″ and 3/4″ threading system to accommodate multiple components and provide flexible installation options. The corrosion-resistant ABS body and brass faucet enhance durability and allow smooth drainage for containers across weather conditions.
With emphasis on corrosion resistance and a complete hardware set, this kit is suitable for installations where an integrated drain solution with a faucet is beneficial. The packaging suggests longevity in outdoor environments, supported by the included gaskets and tapes for a tight seal and leak prevention.
3/4″ Drain Valve Kit for Barrels and Tubs

The 3/4″ Drain Valve Kit from Van Enterprises Store provides a bulkhead adapter and 3/4″ plug, along with a silicon O-ring gasket. This kit enables easy adaptation for various barrel or tank configurations, adding a functional drain option where bulkhead fittings are used. The forest green plug and gasket emphasize compatibility with outdoor barrels and water tanks while ensuring a secure seal against leaks.
Considerations for this kit include compatibility with existing bulkhead fittings, ease of installation, and the quality of the silicon seal. It is a suitable option for users seeking a simple, cost-effective drain solution that can be integrated with different barrel or tank setups, particularly when bulkhead plumbing is already installed.
304 Stainless Steel Stock Tank Drain Kit

This drain kit uses 304 stainless steel construction for the stock tank drain plug and pipe adapter. It is designed to be compatible with Rubbermaid stock tanks in multiple gallon sizes. The stainless steel construction offers high hardness, toughness, and a reliable seal to prevent loosening under pressure. The kit also includes a heavy-duty brass irrigation faucet component intended for outdoor drainage applications, providing a robust solution for draining water from stock tanks.
Key considerations include corrosion resistance, durability in harsh environments, and ensuring a precise fit with Rubbermaid models FG424300BLA, FG424288BLA, FG424400BLA, FG424500BLA, and FG424700BLA. For users prioritizing stainless steel fittings and long-term performance, this kit offers a premium option with a strong seal and resilient materials.
Buying Guide
- Compatibility: Verify tank size and model; most options target Rubbermaid 50/70/100/150/300 gallon tanks. Check thread sizes (1-1/4″ and 1-1/2″) and whether reducers or adapters are included.
- Material choice: Plastic ABS vs. stainless steel vs. galvanized metal. ABS offers lightweight durability; stainless steel provides corrosion resistance; galvanized options suit metal tanks but may require more frequent maintenance.
- Seal and leak prevention: Look for gaskets, O-rings, and pre-wrapped tapes to ensure a tight seal under pressure. A secure seal reduces leakage during drainage and increases longevity.
- Additional features: Faucets or valves, reducers, and bulkhead compatibility can simplify drainage workflows. Consider whether you need a simple plug or a kit with a faucet for controlled drainage.
- Weather resilience: Temperature tolerance (e.g., -40 °C to 70 °C) and UV resistance matter for outdoor use. Durable materials extend service life in varied climates.
- Installation ease: Pre-wrapped tapes, rubber gaskets, and included tools reduce installation time and errors. Ensure compatibility with your existing fittings.
- Cost versus durability: While stainless or brass components may have higher upfront costs, they often reduce maintenance and replacement frequency in outdoor environments.
- Warranty and replacements: Some listings offer replacements or five-year guarantees. Consider manufacturers’ promises when choosing a kit for long-term use.
In selecting a countyline stock tank drain plug solution, weigh compatibility with Rubbermaid models, desired material (plastic, stainless steel, or galvanized metal), and whether you prefer a simple plug or a kit with valves and reducers. For long-term outdoor use, prioritize corrosion resistance, weather tolerance, and a tight, durable seal. Always confirm packaging includes necessary gaskets, tapes, and adapters to ensure a straightforward installation.