The heavy-wall 330 gallon squat tank, ASTM certified
The Snyder 1630300N45 is a vertical liquid storage tank that holds 330 gallons in a white polyethylene shell 48 inches across and 55 inches tall, and it weighs 100 pounds, a quarter more resin than the standard certified 330 in this shape. That wall is the point: rated for a specific gravity of 1.9, or 5,229 pounds of contents against 2,752 for water, sold with ASTM certification, and built for the tank that will be worked hard and expected to last outdoors. The 48 inch base under 55 inches cannot tip. A 10 inch lid on top, and a 3 year warranty.
Ready to price it? The listed price is before freight; quote freight to your ZIP in a few seconds, then add to cart above or call 866-418-1777.
What 100 pounds of resin is for
A rotationally molded tank's empty weight is its wall thickness, and 100 pounds against 80 in the standard certified tank of this size is a shell that resists creep under a dense liquid, holds its shape through years of sun and thermal cycling, and carries a valve and hard pipe at the outlet without oval-ing the fitting. The certification is against ASTM D1998; the HDPE tank wall thickness guide explains the sizing logic and why inspection happens above the liquid line. Full, it puts 5,229 pounds on a 48 inch circle at the rating; a paver pad or a slab in full contact supports that, and the concrete pad sizing guide covers a shared slab. The tank sizing calculator works the size out from feed rate and refill schedule, and the tank sizing guide covers the reserve.
Walls and shapes at 330 gallons
| Part | Gallons | Diameter x height | Empty weight |
|---|---|---|---|
| 1630300N45 (this tank, heavy wall, ASTM certified) | 330 | 48 x 55 in | 100 lb |
| 1011600N45 (ASTM certified) | 330 | 44 x 58 in | 80 lb |
| 1008200C26 | 330 | 47 x 50 in | 85 lb |
| 1008200N42 (XLPE) | 330 | 47 x 50 in | 85 lb |
| 1011200C26 (doorway) | 300 | 35 x 82 in | 85 lb |
| 5760100N42 (XLPE) | 360 | 53 x 59 in | 116 lb |
The 1011600N45 is the lighter certified 330 with an 18 inch manway, on a base 4 inches narrower. The 1008200 tanks are the general 330 on a 47 inch base at 50 inches, 5 inches shorter, with the N42 in cross-linked polyethylene for oxidizers. The 1011200C26 is the doorway shape at 300 gallons, and the 5760100N42 is the cross-linked 360 on a 53 inch base.
Want us to check the fit? Send the site dimensions to 866-418-1777 or through a written quote request and we will confirm the tank, the pad and the freight.
Ports and access
- Access: 10 inch lid at chest height; filled through a dip tube from a hose or tote pump, with the vent run outdoors when the liquid fumes.
- Outlet: specify the bulkhead fitting for the liquid when ordering; flex hose to the pump suction, valve braced off the floor so the fitting carries no pipe weight.
- Service limit: 120 F / 48 C.
- Listing: ASTM certification.
A white tank shows its level in daylight; a float switch at low level shuts the pump off before it runs dry. Set the dosing pump lower than the outlet so gravity primes it, keep the lid closed against vapor loss, and inspect above the liquid line, in the headspace, where a wall fails first.
Typical duty
Treatment chemicals at a small system that needs the certification on file and works the tank hard, brine for a softener, acid and inhibitor feed at a cooling tower, an outdoor tank in full sun under a low eave, and, with water in it, a well buffer or a cell of the small fire reserve the fire-water reservoir design guide describes. One liquid per tank, labeled.
Freight to your ZIP
The 1630300N45 ships palletized as LTL freight (NMFC 156600-02) at a class rate; the freight cost estimator gives the number for your ZIP; the price shown here is before freight. Two people carry 100 pounds. Water-fill to the lid and hold it, check the outlet fitting, and keep the certification with the project file. A photo of the tank on its pad, full, on day one is worth keeping; it is the baseline every later inspection is compared against.
Freight and documents
Ships from: Chowchilla, CA. 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 1630300N45.
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 330 Gallon HDPE Vertical Liquid Storage Tank with ASTM Certification video (67 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.