PolyJohn 300 Gallon Portable Holding Tank (Grey) 1
PolyJohn 300 Gallon Portable Holding Tank (Grey) 2
PolyJohn Enterprises
Lead Time:  1-3 Days
Ships From: Indiana


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Model: HT01-300
Manufacturer: PolyJohn Enterprises

This is the PolyJohn 300 Gallon Portable Holding Tank (Grey). Similar to our 250-gallon model, the PolyJohn 300-gallon holding tank is a necessity as a sanitary receptacle for waste for an outdoor rest area where indoor plumbing is not an option. Our functional and discrete holding tanks reassure workers or guests that waste is being stored safely.

PolyJohn holding tanks are made of an extremely durable plastic, and easily work with different plumbing configurations to ensure that your rest area remains as clean and uncluttered as possible. Specialized design means that our holding tanks can be used with many of our portable restroom or sink models interchangeably.

The 300-gallon capacity allows for maximum waste storage.

These unique portable holding tanks eliminate the use of threaded and solvent-cemented conventional plumbing fittings, which are usually discarded after each use. The 3" (7.6cm) ports utilize "Fernco" flexible rubber couplings, which are available in a variety of pipe sizes and plumbing configurations such as couplers, elbows, tees and caps. These flexible fittings are re-usable. Two sizes of tanks are available. These durable plastic polyethylene tanks are supplied with the top, center port #4, cut open with a 3" rubber cap and clamp provided. In addition to the top center port, a side port will also be cut open in order to pressure test the tank at the manufacturer. This side port will also have a rubber cap and clamp provided. Other ports can be cut open and a rubber cap and clamp supplied at the customer's request for a nominal fee.

Product Detailed Drawing
PDF  PolyJohn 250 and 300 Gallon Holding Tanks Information

Detailed Information
  • Heavy-duty thick wall construction, ideal for bulk waste storage under trailers on job sites
  • No threaded or cemented joints; accepts Fernco rubber couplers and clamps
  • Also available in natural color that reveals fluid levels from a distance (Required in certain states)
  • Discrete appearance
  • Extremely durable construction
  • Works with a variety of plumbing configurations

Height = 16 in / 41 cm
Width = 53.5 in / 136 cm
Depth = 95 in / 241 cm
Capacity = 300 gal / 1134 L
Weight Empty = 130 lbs / 58.5 kg
PolyJohn Enterprises

PolyJohn Warranty Details:

PolyJohn Enterprises offers a 1-year warranty on all of their products. The warranty on PolyJohn products is for 1 year from the date of purchase. PolyJohn agrees to provide parts to repair or replace units found by investigation to be defective because of workmanship or raw materials. Abuse of products by vandalism or other negligence is not covered under our warranty. Products found to be defective can be shipped back freight prepaid to our manufacturing facility in Whiting, IN or to a destination of our choosing.

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