Rain Barrels & Rain Harvesting Supplies
When only the best rain water collection & storage devices will do.

250 gallon UnderDeck Cistern

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This holding tank can be used for above ground waste water storage or fresh water storage. Each holding tank is manufactured using a linear low-density polyethylene, hexane copolymer resin, making it an extremely durable option for water storage. This resin material has excellent dimensional control, low warpage, excellent environmental stress crack resistance (ESCR), and long-term, ultraviolet (UV) stabilization. It's the heavy-duty solution to keeping water safely contained without the threat of cracks, leaks, or spills. The 1/4" nominal wall thickness guarantees dependability. Manufactured from an FDA food grade compliant resin with a grey pigment.

This holding tanks in/outlets are design for 3" fittings. The most popular vendor of flexible rubber couplings is Fernco®. Their couplings are manufactured from tough, elastomeric polyvinyl chloride (PVC) and are unaffected by soil conditions. They are resistant to chemicals, UV rays, fungus growth. The clamps, band screw, and housing are all made from 300 series stainless steel.


Shipping via Motor Freight ONLY. You MUST be home to accept delivery at home. No issues to ship to a commercial address
Contact Us for current shipping rates prior to placing your order :-) This order does NOT ship for free. By adding this product to your shopping cart you are ONLY purchasing the product and NOT the freight to get it to you.

250 gallon UnderDeck Cistern is suggested for those locations where you do not have the vertical height to work with.

Recessed area to place bands to secure tank to a base
All ports are designed to accept 3" rubber fittings
Top center hole is primary inlet and is already cut open

Color is Grey

measures 18" tall x 48" wide x 72" long

110 pounds empty - about 2100 when full

UnderDeck line art drawing







250 gallon UnderDeck Cistern
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