A 4 lb propane cylinder holds approximately 1 gallon of propane at the correct 80 percent fill level. It is the smallest refillable steel LP cylinder size in common commercial use. The weight rating refers to the propane carried, not the cylinder itself.

The 4 lb size suits small torches, portable heaters, tabletop appliances, and equipment where space and weight are tightly constrained. It is frequently specified by equipment manufacturers who build a cylinder into a product. Rental and hospitality accounts also use it where cylinders are carried by hand.

Yes. This is a refillable steel DOT cylinder with an OPD valve, unlike the single-use 1 lb canisters sold for camping. Refilling is both cheaper per unit of gas and avoids the disposal burden of single-use cylinders, which matters to volume users.

A 4 lb cylinder supplies roughly four to five hours of continuous use on a typical single-burner appliance. Duration is driven entirely by the appliance’s BTU rating. Dividing that rating into approximately 86,000 BTU gives a working estimate.

Yes, and it is the standard upgrade for operations going through disposables in quantity. A 4 lb cylinder holds roughly four times the gas and connects to the same appliances with the correct adapter hose. The trade is size and weight against a substantially lower running cost.

It uses an OPD valve, the same overfill prevention design required across the LP cylinder range. That means it is filled by the same procedure and accepted at the same facilities as larger cylinders. Appliance-side connections vary, so confirm the hose fitting for the equipment.

Yes. We supply the full LP cylinder range at wholesale to distributors, OEM accounts, and commercial buyers. Request a quote with the quantity and we will price it for volume.

Yes, they carry both DOT and TC approval and are manufactured in the United States, so they are accepted by filling facilities in both the US and Canada. Certification documentation is available on request.

Any licensed propane facility can fill a 4 lb cylinder, since it carries a standard OPD valve and a current requalification stamp. Retail exchange cages generally do not handle this size, so refilling rather than exchanging is the normal route. Commercial users typically fill in-house or through their propane marketer.

Store them upright, secured, and in a ventilated space that is not a living area or basement, with valves closed. Small cylinders are easily overlooked in vehicles and enclosed storerooms, which is the most common handling mistake with this size. The venting design that makes them safe outdoors makes enclosed storage hazardous.