Residential propane
Propane Cylinder Refills
Bring the cylinder to our propane refill center and we fill it while you wait. Grill cylinders, work cylinders and the cylinders from a travel trailer.
What it is
Cylinders Filled While You Wait
Visit the Buchanan Dam location on Highway 29 or the Marble Falls location on RM 1431, and we fill your cylinder during your visit. You are not waiting on a truck and you do not need to schedule anything.
We refill the exact cylinder you bring in, so you always keep your own tank. Unlike exchange cages, you’ll never get stuck with a dented cylinder or an outdated recertification date stamped on the collar.
4-T Propane inspects each cylinder before filling it. If the date on the collar has expired, we will tell you, and we can recertify it here rather than referring you elsewhere.

How it works
Three Steps at Our Propane Refill Center
Bring the Cylinder In
Buchanan Dam on Highway 29, or Marble Falls on RM 1431. Bring the cylinder; that is all we need, and nothing needs to be scheduled.
We Check the Cylinder
We read the date on the collar and check the valve and the shell before anything goes in. If we cannot fill it, we show you why.
We Fill It During Your Visit
The cylinder you bring in is the cylinder you leave with, full. You are welcome to stay and watch, and then you are on your way.
What we fill
Grill, Work and Trailer Cylinders
Trailer and camper cylinders are filled the same way. See our RV propane refill page for details.
Grill and Patio Cylinders

The twenty-pound cylinder from a grill and the taller one from a patio heater. Bring it in and we fill it, so it is ready to use that same day.
Work and Jobsite Cylinders

Forklift cylinders, torch cylinders and the cylinders that heat a work area in winter. Bring a set in together rather than one at a time.
Cylinders We Cannot Fill

A cylinder past its collar date, or one with a damaged valve or foot ring, cannot be legally or safely filled. We’d rather tell you upfront than send you home with an unsafe tank.
Cylinder Refill Questions
What Do I Need to Bring?
The cylinder, and nothing else. If you are unsure whether yours is one we can fill, call the office on (830) 220-9240 and describe it before you visit.
Can I Swap My Empty for a Full One Instead?
We refill the cylinder you bring in, so you keep your own.
What If My Cylinder Is Out of Date?
We read the collar date before filling anything. If it has expired, we can recertify the cylinder rather than turn you away. More detail is available on our cylinder recertification page.
Which Location Should I Come To?
Buchanan Dam is on Highway 29, just east of the dam. Marble Falls is on RM 1431. Both fill cylinders while you wait. Call the office on (830) 220-9240 to confirm availability before you visit.
Get in touch
Ask Us About Filling Your Cylinders
Submit this form and we will contact you about your cylinders and which location suits you.

Need a Cylinder Filled Today?
Bring it to our propane refill center, or start an account with 4-T Propane for the tank at your home.