300 Gallon Plastic Septic Pump Tank

Manufacturer Part

Norwesco’s 300 gallon spherical pump tank

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Norwesco’s 300 gallon spherical pump tanks can be used either as a holding tank or as a pump tank depending on your needs. Unlike the Norwesco ribbed tanks, these underground spherical pump tanks can still remain underground even when empty. The polyethylene is safe to store underground and will not damage the environment. These tanks feature an elevated pump stand that is molded into the bottom of the tank. Also standard is a 20-inch watertight domed lid, which provides access for cleaning and filling tanks. The lid has a much stronger design than other tank lids, which makes these tanks better at preventing leaks.

  • Rotationally molded, one-piece, seamless, watertight tank.
  • Polyethylene is unaffected by soil chemicals, sewage gases.
  • Polyethylene tanks will not rust or erode.
  • Strict quality guidelines ensure an environmentally safe septic tank.
  • Riser extensions not included
  • Great item for shipment; indestructible.
  • Height to the inlet 44"
  • Height to the outlet 42"



Technical Drawings
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Key Specs
Diameter 54"
Gallon Capacity 300
Lid Size 20"
Length 54"
Width 54"
Height 54"
Weight 119lbs
Material Polyethylene
Manufacturer Norwesco
Manufacturer Part Number 41319
Warranty 3 years years
Shipping Height 54"
Shipping Length 54"
Shipping Weight 119lbs
Shipping Width 54"
Ship Class LTL