The Snyder Industries 1500 Gallon ASTM XLPE Black Double Wall Tank (SKU 5990302N48) is a fully self-contained double-wall storage tank: a primary tank nested inside a secondary containment shell, so a leak in the inner wall is caught by the outer wall instead of reaching your site. It holds 1,500 gallons, stands 76 inches tall on a 93 x 93 inch footprint, and is molded in black crosslinked linear polyethylene (XLPE) carrying a 1.9 specific gravity rating. That high SG rating is the headline number on this tank, and it is what makes it a heavier-duty container than a standard single-wall water tank.
Hard specs to confirm before you order
Confirm these against your pad, doorway, roofline, and slab load at a glance:
- Capacity: 1,500 gallons
- Footprint and height: 93 x 93 inches, 76 inches tall
- Weight full of water (SG 1.0): roughly 12,510 lb
- Maximum rated contents weight: 23,769 lb (the basis for the 1.9 SG rating)
- Material and color: black XLPE, double-wall construction
Verify every dimension against the technical drawing on this page. If you are still settling on a capacity, the Tank Sizing Calculator and the Tank Sizing Guide will get you to the right size.
Will it work for your application
For water service this tank is sized with real margin. Filled with water the contents weigh roughly 12,510 lb, while the tank is rated to carry contents weighing up to 23,769 lb. The wall and structure are built for liquids far denser than water, so water never approaches the limit. That same 1.9 SG rating means this tank legitimately handles liquids up to 1.9 specific gravity, so a buyer sizing for water today who may store a denser liquid like brine later does not need to buy a different tank down the road. Our guide on Snyder Captor double-wall freeboard sizing per ASTM D1998 walks through how density and thermal expansion affect the volume you can actually use.
Fittings, access, and interstitial monitoring
This XLPE double wall tank comes configured with an 18-inch PE threaded/vented opening and a manway with 15-inch access. The 15-inch manway access is how you visually inspect and monitor both the primary tank and the interstitial space between the inner and outer walls, so you get secondary containment without building a separate concrete dike and without an extra port. Inlet and outlet bulkhead fittings and gaskets are not part of the molded configuration shown here, so confirm your required penetrations against the technical drawing on this page and call us to spec them. Match the fitting locations and elevations to your plumbing and overflow routing before delivery.
The mistake to avoid
Do not under-spec the slab or the access path. Empty handling is one thing, but in service this tank can be a 12,500 lb load on water alone, and far more if you ever store a heavier liquid that the 1.9 SG rating permits. Set it on engineered, level support and confirm your interstitial monitoring plan before filling. Treat the 93 x 93 footprint as a hard constraint, not a target. For the engineering behind double-wall behavior, our references on wall thickness at the vapor-saturated headspace and cathodic disbondment testing for double-wall interstitial spaces are worth reading. If this tank is going into a private fire-protection role, the fire-water reservoir design guide covers NFPA 22 sizing discipline and cold-climate freeze protection.
This Snyder double wall tank ships LTL freight, quoted live to your ZIP, from the nearer of two stocking plants: Chowchilla, California or Lincoln, Nebraska. Two ship-from points mean most West-coast and Midwest buyers move on a materially shorter LTL lane than a single-plant supplier can offer, which directly lowers your freight cost. Get the exact lane and freight number with the Freight Cost Estimator, or call 866-418-1777 and we will quote the freight, confirm the fitting layout, and lock in your delivery.
