The Chem-Tainer 440 Gallon Open Top Batch Storage Tank is a cylindrical, open-top polyethylene tank built for batch mixing, settling, and bulk water storage where you need full top access to the contents. It stands 48 inches tall on a 52 x 52 inch footprint, holds 440 gallons of usable rated volume, and is molded in natural white polyethylene. This is a workhorse open top tank for operations that fill, treat, draw down, and refill on a cycle.
Will it work for your application?
Filled with plain water, a full tank carries roughly 3,670 pounds, so plan your pad and any stand for that load before you set it. The tank is rated to a 1.9 specific gravity, which is the top of Chem-Tainer's standard band and puts its maximum rated contents weight at about 6,972 pounds. Use that rating as a go/no-go check: SG 1.9 means the tank is built for fluids up to roughly 1.9 times the density of water, so confirm your fluid's specific gravity stays at or under 1.9 before you order. As an open top tank, it is sized to be filled to a working level rather than brimmed - leave freeboard for agitation, splash, and thermal movement so your planned batch volume sits below the rim. If you are sizing for a process volume or a usable-versus-total question, run your numbers through the Tank Sizing Calculator or read the Tank Sizing Guide first. The square 52 x 52 inch footprint keeps it stable on a flat pad, and the open top makes it easy to load, agitate, and clean.
What freight should you expect?
This tank ships LTL on a pallet from the Chem-Tainer plant in Hummelstown, Pennsylvania. Because it is a large white open top tank, it travels as freight rather than parcel, and its LTL class is driven more by its bulky 52 x 52 x 48 inch footprint than by its weight - it must also ride upright and protected since the top is open. Cost depends on your delivery ZIP, dock or liftgate access, and whether you are residential or commercial. Get a real number before you order with the Freight Cost Estimator, or call 866-418-1777 and we will quote it live to your address.
The mistake to avoid
The most common error on an open top tank like this is treating it as a sealed, pressurized, or fully enclosed vessel. It is not. It is an open top batch and storage tank, so contents are exposed to air, evaporation, and debris unless you add a cover, and it is not meant to hold a head of pressure or to be plumbed as a closed system. Just as important: this unit ships as an open-top vessel without factory fittings in our data, so any bulkhead, outlet, gasket, or drain has to be specified and added separately - call 866-418-1777 to confirm port options before you order rather than assuming a drain is included. Finally, do not guess the slab: confirm your pad is flat, level, and large enough for the full 52 x 52 inch base before delivery day, and review the technical drawing on this page for exact dimensions, tolerances, and the tank's dry weight before you rig it. For a deeper look at preparing the slab under a tank this size, see our guide on concrete pad sizing for above-ground polyethylene tanks. If this tank is part of a reuse or reservoir system, the guides on industrial water reuse tank topology and fire-water reservoir tank design will help you place this storage tank correctly within the larger system.
Ready to move? Confirm your freight with the Freight Cost Estimator or call 866-418-1777 to lock in your 440 gallon open top tank shipping from Hummelstown, PA. Review the technical drawing on this page for exact dimensions and tolerances before you build your pad.
