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 65 pounds, 8 pounds more resin than the standard 300 gallon doorway tanks in Snyder's line. It goes through a standard door, stands in a utility closet or a well house, and the black wall keeps light out of the water so it stays clear of algae. A 1-1/2 inch inlet, a 2 inch outlet, an 18 inch vented manway, a rating of 1.0 specific gravity for water and liquids no heavier, and a 3 year warranty.
Ordering for a plant or a bid? Request a written quote with freight to your ZIP for the file; a single 300 gallon tank goes straight to the cart above.
A tall, narrow tank indoors or out
More than twice as tall as it is wide, the WB21 wants a level floor and a strap to a wall or a post, because 2,502 pounds of water on a 35 inch circle has a high center of gravity. Indoors that is a stud and a ratchet strap; outdoors it is two straps to anchors, and the heavier wall is what makes it the doorway tank to leave outside. The 300 gallon black water tank buyers guide compares the tall shapes at this volume across makers, and the tank sizing calculator tells you whether 300 gallons covers the draw.
Snyder's 200 to 330 gallon verticals
| Part | Gallons | Diameter x height | Empty weight |
|---|---|---|---|
| WB21 (this tank, black, heavy wall) | 300 | 35 x 81 in | 65 lb |
| 32499, black | 300 | 36 x 72 in | 57 lb |
| 32613, mocha | 300 | 36 x 72 in | 57 lb |
| WG24R, green, squat | 330 | 47 x 50 in | 65 lb |
| 32495 | 200 | 40 x 42 in | 33 lb |
The 32499 and 32613 are the standard-wall doorway tanks, 9 inches shorter and 8 pounds lighter, in black and mocha, for the indoor closet where the tank is filled and left alone. The WG24R lays 330 gallons down to 50 inches on a 47 inch base with a bolted outlet, and the 32495 is the 200 gallon step down at 42 inches.
Still deciding between these? Freight to your ZIP often settles it; the wider tanks ship differently. Or call 866-418-1777 and we will walk the table with you.
Ports and manway
- Inlet: 1-1/2 inch polypropylene female NPT bulkhead fitting.
- Outlet: 2 inch polypropylene female NPT bulkhead fitting at the base.
- Access: 18 inch threaded, vented manway, half the diameter of the tank.
- Service limit: 120 F / 48 C.
A 2 inch outlet on a 300 gallon tank feeds a small pressure pump without starving it, and 81 inches of head gives a garden hose a usable flow by gravity. An 18 inch manway on a 35 inch tank reaches the whole floor for cleaning. Tee a sight tube off the outlet to read the level through the black wall, and in a freezing climate insulate or drain the outlet valve and the first run of pipe; the body takes ice from the top down without harm.
Put to use
Well buffer in a utility room, rain cistern beside a downspout, emergency water in a garage, and one cell of a small fire reserve of the kind the fire-water reservoir design guide describes. Several of them are the storage stage of a small reuse system for roof water and condensate, per the industrial water reuse tank topology article; the tank sizing guide covers days of supply.
Shipping the tank
The WB21 ships palletized as LTL freight (NMFC 156600-01) at a class rate; the freight cost estimator shows the lane to your ZIP; the listed figure is the price before freight. One person carries 65 pounds through the door. Strap it, fill it to the manway once, and check both fittings before it goes to work; keep a screen on the inlet and the vent. A strap that is checked once a season is a strap that holds; put it on the same calendar as the gutters.
Freight and documents
Ships from: Marked Tree, AR. LTL freight is quoted to your ZIP with the freight cost estimator or by phone at 866-418-1777. The listed price is before freight.
Technical drawing (PDF) for Snyder Industries WG21.
See this tank
Interactive 3D model with live fill. This tank has an interactive 3D model built to its manufacturer dimensions. Rotate it, and set a fill level to see how much liquid it holds at any height. Open the 3D view on the product photo above. Download the 3D model (GLB).
Product video. Watch the Snyder Industries 300 Gallon Plastic Vertical Water Storage Tank in Black video (76 seconds) with dimensions, fittings and shipping notes.
Ready to order?
Add it to your cart at the top of this page, get LTL freight to your ZIP, request a written quote, or call 866-418-1777. The listed price is before freight.
