OneSource Plastics' Rainwater catalog covers the full product range from the major US manufacturers. Search by SKU, brand, or capacity below. Bulk-pricing and consolidated-freight quotes available via 866-418-1777.
Rotomolded polyethylene tanks in this category are typically manufactured to ASTM D1998, and many use FDA 21 CFR 177.1520 compliant resin; certifications vary by model and manufacturer, so check each product's Specifications for what applies. UV stabilizers are co-extruded into the resin for outdoor installation. Maximum operating temperature 120°F for HDPE; higher for XLPE (cross-linked polyethylene). NSF 61 certified models available on request for potable drinking water applications — call to specify.
Freight & Delivery
Tanks ship LTL motor freight from the closest stocking warehouse to your delivery ZIP. Typical transit 5-10 business days. Liftgate available at delivery (per-shipment fee). Always inspect at delivery and note any damage on the bill of lading before signing — that is the LTL carrier claim trigger. Bulk-order consolidation reduces per-tank freight 25-40%. Same-business-day quotes: call 866-418-1777 with MPN, quantity, and delivery ZIP.
Sizing & Selection
Pick capacity first, then verify dimensions against your installation footprint. Most rotomolded tanks are built to OEM standard dimensions ± standard rotational-molding tolerance of ±2-3%. Vertical tanks need flat-pad foundation; horizontal/leg tanks need stand or cradle (check listing — some are sold with integrated stand, others require separate stand or band purchase). Application engineering: call 866-418-1777 for sizing, layout, and accessory recommendations.
300 gallons of black water storage on a three foot base
The Snyder WB22 is a black polyethylene water tank that holds 300 gallons in a shell 36 inches across and 82 inches tall, weighing 65 pounds...
300 Gallon Norwesco Doorway Water Tank in White
The Norwesco N-44330 is a 300 gallon doorway tank: a tall, narrow, flat-sided tank built to go where a round tank can't. It measures 66" long x 29"...
300 gallons through a 36 inch doorway
The Snyder 32501 holds 300 gallons in a green polyethylene tank 36 inches across and 72 inches tall, 57 pounds empty. Thirty-six inches is the number: it is the...
300 gallons through a 36 inch doorway
The Snyder 32499 is a black high density linear polyethylene water tank that holds 300 gallons in a shell 36 inches across and 72 inches tall, weighing 57...
The heavy-wall 300 gallon doorway tank in green
The Snyder WG22 is a green high density linear polyethylene water tank that holds 300 gallons in a shell 36 inches across and 82 inches tall, and it...
300 gallons in mocha, sized for a doorway
The Snyder 32613 is a 300 gallon vertical water tank in mocha brown high density linear polyethylene, 36 inches across and 72 inches tall, weighing 57...
The Bushman 500 Gallon Water Storage Tank (BM-WW-500-GL-BLK) is a black, vertical polyethylene tank built for bulk water storage where you need real capacity in a tight footprint. It stands 67 inches...
The Bushman 500 Gallon Water Storage Tank (BM-WW-500-GL-NAT) is a vertical polyethylene water storage tank built for bulk water where a compact footprint matters. It holds 500 gallons inside a...
The heavy-wall 300 gallon doorway tank in black
The Snyder WB21 is a black high density linear polyethylene water tank that holds 300 gallons in a shell 35 inches across and 81 inches tall, weighing...
A 325 gallon underground cistern for rainwater, well water or a household reserve
The Norwesco 325 gallon underground cistern, part number 41321, is a white polyethylene tank made to be buried: 54...
The Bushman 130 Gallon Mocha Slimline Water Storage Tank packs 130 gallons of water storage into an 18-inch-deep footprint that tucks against a wall, fence line, or the side of a house where a round...
The Bushman 500-gallon vertical water storage tank in black gives you 500 gallons of water storage in a tight 48-inch footprint. At 71 inches tall and 48 inches in diameter, it fits through standard...