The Snyder Industries 150 Gallon ASTM XLPE Black Double Wall Tank (SKU 5710102N48) is a black crosslinked-polyethylene double-wall tank measuring 34" x 34" x 62" (L x W x H), standing 62 inches tall on a compact 34 x 34 inch footprint, built for storage where a contained outer wall matters and floor space is tight. It carries a 1.9 specific-gravity rating, molded from crosslinked linear polyethylene to ASTM standards, with the inner primary tank and the surrounding interstitial outer shell sharing one structure. If you are sizing a double wall tank for water storage or fire-water reserve, the numbers below are what you build around.
Will it work for your install?
The 150-gallon primary holds 1,251 pounds of full water weight, and the tank is rated to carry up to 2,377 pounds of contents at its 1.9 specific-gravity ceiling. That structural headroom is why the XLPE wall and the 1.9 SG rating matter together: the 2,377-pound figure, not the water number, is what you size the stand, pad, and anchoring around. The 34 x 34 inch footprint sets your pad dimensions; confirm the slab is level and rated for the loaded weight before filling. The 1.9 SG rating is a weight ceiling, meaning contents up to 1.9 specific gravity stay within the structural rating by weight; it is not a chemical-resistance guarantee, so confirm chemical compatibility separately against the fitting and gasket materials before any non-water service.
Fittings and access
Per the technical drawing on this page, the tank carries a 14-inch PE threaded, vented fill/lid arrangement on top and a manway with 11-3/8 inch access for interior reach. That 11-3/8 inch opening is your interior-access limit, so check that a hand, light, or cleaning brush clears it for the inspection and cleaning routine you have in mind. Before you plumb it, verify the thread type and size on the 14-inch PE opening match your fill and pump configuration, and confirm the manway gasket and seal material suit your fluid. For matching the tank to your gallons-per-day or reserve target, run the numbers through the Tank Sizing Calculator and the Tank Sizing Guide. For double-wall freeboard math, the Snyder Captor double-wall freeboard sizing guide walks through ASTM D1998 freeboard math so the volume you plan for is the volume you can actually use.
The mistake to avoid
The double-wall design is the reason people buy this tank, but the interstitial space only protects you if you treat it as a monitored containment volume, not extra capacity. Do not overfill toward the brim of the primary, do not exceed the 1.9 specific-gravity rating, and inspect the headspace region of the wall over time. Wall stress and premature failure tend to start at the vapor-saturated headspace, not on the liquid side. The HDPE wall-thickness at the headspace guide explains why liquid-side checks miss it, and for buried outer-wall service the cathodic disbondment testing guide covers the interstitial-space conditions to plan for. Sizing a reserve for rural or remote fire-water duty? See the fire-water reservoir design guide.
This 150 gallon Snyder double wall tank ships LTL freight from Marked Tree, Arkansas, with the rate quoted live to your ZIP. Because it is a ~2,377 lb-rated, 1,251 lb-water tank moving from a single Arkansas plant, freight scales with distance and a dock, forklift, or liftgate matters at delivery, so size that into the decision before you order. Get your number from the Freight Cost Estimator, or call 866-418-1777 and we will quote the freight and confirm fittings before you order.
