Rectangular Flat Bottom Tanks
Rectangular Flat Bottom Tanks

Rectangular Flat Bottom Tanks

These heavy-duty rectangular tanks are designed for space-efficient liquid storage in indoor or outdoor, stationary or transportable applications. Their flat-bottom design allows for stable placement without the need for stands or cradles, while still requiring secure anchoring for transport use. Manufactured from UV-stabilized medium-density polyethylene (MDPE), these tanks offer excellent durability in agricultural, industrial, and general-purpose applications. Natural tanks offer easy level monitoring with molded gallon indicators and a translucent design, while black, blue, and green tanks provide added UV protection for light-sensitive contents.

  • UV-stabilized MDPE
  • Natural tanks are translucent & have gallon indicators for level viewing
  • Fittings are installed on the opposite side of gallon marks
  • For models without fittings, a fitting can be installed for an additional charge
  • Select 6 gallon tanks include a pump mount
  • Maximum specific gravity: 1.7
  • Max. temperature: 120°F constant & spikes up to 140°F
  • NSF/ANSI/CAN 61 listed (Natural & black only)
  • FDA-compliant resin/materials
Item # Description Catalog Pg. Price Add to Cart
2.8 Gallon Natural MDPE Rectangular Flat Bottom Tank with 5" Lid & No Fitting - 14" L x 9" W x 9" Hgt.
Item 13099
65.18/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-335
65.18/Each
2.8 Gallon Black MDPE Rectangular Flat Bottom Tank with 5" Lid & No Fitting - 14" L x 9" W x 9" Hgt.
Item 16878
65.18/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-335
65.18/Each
2.8 Gallon Blue MDPE Rectangular Flat Bottom Tank with 5" Lid & No Fitting - 14" L x 9" W x 9" Hgt.
Item 99245
70.15/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
NEW
70.15/Each
2.8 Gallon Green MDPE Rectangular Flat Bottom Tank with 5" Lid & No Fitting - 14" L x 9" W x 9" Hgt.
Item 99246
70.15/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
NEW
70.15/Each
5 Gallon Natural MDPE Rectangular Flat Bottom Tank with 5" Lid & No Fitting - 22" L x 10" W x 8" Hgt.
Item 11346
83.62/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-335
83.62/Each
5 Gallon Black MDPE Rectangular Flat Bottom Tank with 5" Lid & No Fitting - 22" L x 10" W x 8" Hgt.
Item 16879
83.62/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-335
83.62/Each
5 Gallon Blue MDPE Rectangular Flat Bottom Tank with 5" Lid & No Fitting - 22" L x 10" W x 8" Hgt.
Item 99247
83.78/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
NEW
83.78/Each
5 Gallon Green MDPE Rectangular Flat Bottom Tank with 5" Lid & No Fitting - 22" L x 10" W x 8" Hgt.
Item 99248
83.78/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
NEW
83.78/Each
6 Gallon Natural MDPE Rectangular Flat Bottom Tank with 5" Lid & 3/4" Fitting - 15" L x 12" W x 8" Hgt.
Item 8651
93.87/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-335
93.87/Each
6 Gallon Black MDPE Rectangular Flat Bottom Tank with 5" Lid & 3/4" Fitting - 15" L x 12" W x 8" Hgt.
Item 16881
101.02/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-335
101.02/Each
6 Gallon Blue MDPE Rectangular Flat Bottom Tank with 5" Lid & 3/4" Fitting - 15" L x 12" W x 8" Hgt.
Item 99251
105.46/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
NEW
105.46/Each
6 Gallon Green MDPE Rectangular Flat Bottom Tank with 5" Lid & 3/4" Fitting - 15" L x 12" W x 8" Hgt.
Item 99252
105.46/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
NEW
105.46/Each
6 Gallon Natural MDPE Rectangular Flat Bottom Tank with Pump Mount, 2" Lid & No Fitting - 15" L x 12" W x 8" Hgt.
Item 11347
89.92/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-335
89.92/Each
6 Gallon Black MDPE Rectangular Flat Bottom Tank with Pump Mount, 2" Lid & No Fitting - 15" L x 12" W x 8" Hgt.
Item 16880
89.92/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-335
89.92/Each
6 Gallon Blue MDPE Rectangular Flat Bottom Tank with Pump Mount, 2" Lid & No Fitting - 15" L x 12" W x 8" Hgt.
Item 99249
90.09/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
NEW
90.09/Each
6 Gallon Green MDPE Rectangular Flat Bottom Tank with Pump Mount, 2" Lid & No Fitting - 15" L x 12" W x 8" Hgt.
Item 99250
90.09/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
NEW
90.09/Each
7 Gallon Natural MDPE Rectangular Flat Bottom Tank with 5" Lid & 3/4" Fitting - 14" L x 9" W x 15" Hgt.
Item 8657
102.79/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-335
102.79/Each
7 Gallon Black MDPE Rectangular Flat Bottom Tank with 5" Lid & 3/4" Fitting - 14" L x 9" W x 15" Hgt.
Item 16882
102.79/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-335
102.79/Each
7 Gallon Blue MDPE Rectangular Flat Bottom Tank with 5" Lid & 3/4" Fitting - 14" L x 9" W x 15" Hgt.
Item 99253
102.85/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
NEW
102.85/Each
7 Gallon Green MDPE Rectangular Flat Bottom Tank with 5" Lid & 3/4" Fitting - 14" L x 9" W x 15" Hgt.
Item 99254
102.85/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
NEW
102.85/Each
16 Gallon Natural MDPE Rectangular Flat Bottom Tank with 5" Lid & 3/4" Fitting - 21" L x 14" W x 14" Hgt.
Item 8658
117.06/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-335
117.06/Each
16 Gallon Black MDPE Rectangular Flat Bottom Tank with 5" Lid & 3/4" Fitting - 21" L x 14" W x 14" Hgt.
Item 16883
125.42/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-335
125.42/Each
16 Gallon Blue MDPE Rectangular Flat Bottom Tank with 5" Lid & 3/4" Fitting - 21" L x 14" W x 14" Hgt.
Item 99255
118.42/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
NEW
118.42/Each
16 Gallon Green MDPE Rectangular Flat Bottom Tank with 5" Lid & 3/4" Fitting - 21" L x 14" W x 14" Hgt.
Item 99256
118.42/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
NEW
118.42/Each
20 Gallon Natural MDPE Rectangular Flat Bottom Tank with 5" Lid & 1/2" Outlet - 15" L x 11" W x 31" Hgt.
Item 11348
169.37/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-335
169.37/Each
20 Gallon Black MDPE Rectangular Flat Bottom Tank with 5" Lid & 1/2" Outlet - 15" L x 11" W x 31" Hgt.
Item 16884
169.37/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
P-335
169.37/Each
20 Gallon Blue MDPE Rectangular Flat Bottom Tank with 5" Lid & 1/2" Outlet - 15" L x 11" W x 31" Hgt.
Item 99257
182.08/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
NEW
182.08/Each
20 Gallon Green MDPE Rectangular Flat Bottom Tank with 5" Lid & 1/2" Outlet - 15" L x 11" W x 31" Hgt.
Item 99258
182.08/Each
Save 5% when you buy 2+
Save 10% when you buy 4+
Save 15% when you buy 12+
NEW
182.08/Each

Note: Product testing for individual applications is recommended before use. U.S. Plastic Corp. cannot be held liable for individual application failures.

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