The Snyder Industries 500 Gallon ASTM Black Heavy Duty Vertical Storage Tank (SKU 5780100N51) is a heavy-wall vertical built for bulk water storage where durability and slab loading matter. It holds 500 gallons, stands 77 inches tall on a 53 x 53-inch round footprint, and is molded from high density linear polyethylene in black. If you are placing a vertical storage tank on a fixed pad or in a tight equipment room, the footprint and height below are the numbers to check first.
- Capacity: 500 gallons
- Footprint: 53 x 53 in (round), 77 in tall
- Material: High density linear polyethylene, black
- Specific gravity rating: 1.9
- Weight full of water: ~4,170 lb
- Max rated contents weight: 7,923 lb
- Ships from: Marked Tree, Arkansas
Will it work for your setup?
The 1.9 specific-gravity rating is the standout spec. For water service it means structural headroom: heavy-wall durability and a max rated contents weight of 7,923 lb, well above the ~4,170 lb this tank plus 500 gallons of water actually weighs. Use both numbers when you design the slab or platform, and run your dimensions through the Tank Sizing Calculator and Tank Sizing Guide before you fix a location. The black HDLPE also blocks light, which discourages algae growth in stored water compared with translucent tanks.
Fittings and access
Per the technical drawing on this page, this tank carries three distinct connections: a flange fitting (the plumbed outlet you plan piping around), an 18-inch polyethylene threaded and vented lid for fill and venting, and a manway with 15-inch access for interior cleaning and inspection. Confirm the flange size, gasket, and mating hardware against the drawing before you order plumbing, since a bulkhead or flange connection only seals leak-free with the correct gasket. Keep the vented lid vented for gravity-fill and free-vent duty and never seal it against a pump that could pull a vacuum on the tank. For fire-water and reservoir use, our guide on fire-water reservoir tank design and NFPA 22 sizing covers freeboard and cold-climate freeze protection for a black vertical like this one.
The mistake to avoid
Do not under-build the pad. Match the slab to the tank fully and evenly supported, keep it level, and size the foundation with real load numbers rather than a guess. Review concrete pad sizing for above-ground polyethylene tanks before pouring. If this 500 gallon vertical tank feeds a reuse or aggregation system, see industrial water reuse tank topology.
This vertical storage tank ships LTL freight from the Snyder plant in Marked Tree, Arkansas, quoted live to your ZIP. Get your number in seconds with the Freight Cost Estimator, or call 866-418-1777 and we will handle the quote and logistics for you.
