The Enduraplas AZFD02800 is the structural frame for a 2800-3200 gallon sump tank, rated to seat and support a shell up to 3200 gallons on a 97 by 145 inch footprint. Read this before you buy: this SKU is the frame/base only, standing 4 inches tall — the sump shell is a separate purchase, and no fittings, lid, or penetrations ship with it. What you get is a defined, level platform that carries a large open sump instead of letting an unsupported shell sit on bare ground. If you are still sizing the basin around a known daily volume, run the numbers through our Tank Sizing Calculator and the Tank Sizing Guide before you commit to a footprint this large.
Will it work for your site?
The footprint is 97.0 x 145.0 inches, so confirm your pad or containment area can carry the full plan dimension with working clearance on all sides. Size the civil work for the loaded condition, not the empty frame: at the 3200 gallon rating the water alone weighs roughly 26,688 pounds, and that is the design load this frame transmits down to the pad. A properly sized and dead-level concrete pad is what keeps that load flat and stable — our guide on concrete pad sizing for above-ground polyethylene tanks walks the ACI 360R-10 framework for exactly this decision.
Where it fits
A sump frame this size lives at the aggregation point of a water-reuse train — grey water, rainwater, and HVAC condensate collection where you need a large holding stage before treatment or transfer. If that is your application, our breakdown of industrial water reuse tank topology covers where a bulk sump belongs in the storage sequence. On transfer and loadout sites, pad slope and spill-containment geometry matter as much as the basin itself; see our field notes on loadout pad engineering. Note that outlet and bulkhead selection happens on the sump shell, not this frame — no fittings are integral to the base.
The mistake to avoid
The common error on a frame like this is treating it as a drop-in tank. It is not: it is a 4-inch structural base that seats a separately purchased shell. The single biggest failure mode is an under-built or out-of-level pad — at nearly 26,700 pounds of water load, any settlement or slope you accept at install gets amplified over time. Set the pad first, verify it dead-level, then seat the frame. Confirm the frame footprint against Enduraplas' frame drawing before you pour.
Ships LTL freight, quoted live to your delivery ZIP. Get a firm number from our Freight Cost Estimator, or call 866-418-1777 and we will price the haul and confirm offload requirements for a unit this size.
