Refill prices vary by area and propane market rates. Most refill stations charge by the gallon. A 20‑lb cylinder typically takes about 4 to 4.7 gallons when filled to the safe limit (around 80%), so you can estimate your total using the posted per‑gallon rate.

• Check local availability: Some locations offer refills, while others focus on tank exchange.
• Use Walmart tools: The store finder or app can help you confirm nearby services and hours.
• Bring a compliant cylinder: Make sure your tank is in good condition and within its certification date.

Transport tanks upright, keep them outdoors and ventilated, and follow staff instructions at the station.

Both options can work well, and the better value depends on your situation.

• Refill: Usually priced by the gallon, so you pay for the propane you receive. It can be cost‑effective if your tank isn’t completely empty. Availability varies by location.
• Exchange: Fast and convenient, with prefilled, inspected cylinders. It may cost more per pound of propane, but the convenience and quick swap can be worth it for many shoppers.
• Before you go: Check your cylinder for dents, rust, or expired certification—damaged or out‑of‑date tanks may not be accepted for exchange or refill.

Use your local store’s details to see which service is offered nearby and compare before deciding.

Local prices can vary by supplier and day, so a quick check can help you find a good rate.

• Ask about per‑gallon pricing: It’s easier to estimate your total based on how much your tank needs.
• Call ahead: Confirm today’s rate and whether partial fills are offered.
• Confirm services: Some places only exchange tanks, while others refill.
• Check Walmart locations: Use the store finder or app to see nearby options and hours.

Bring your cylinder clean, upright, and with a protective cap in place to help speed up the process.

Most full‑size backyard gas grills are designed for a standard 20‑lb liquid propane cylinder with a Type 1 (ACME) connection.

• Verify fit: Make sure the tank fits the grill’s cabinet or mount and allows proper ventilation.
• Check your manual: Compact or built‑in models may specify a different size or a fixed connection.
• Plan for usage: If you cook often, keeping a second 20‑lb cylinder on hand can reduce downtime.

If you’re unsure, note your grill’s connection type and cabinet measurements and bring them when you shop.

Only cylinders specifically designed and certified for refilling should be refilled. Many 1‑lb disposable cylinders aren’t made for reuse and shouldn’t be refilled due to safety and regulatory concerns.

• Choose refillable models: Look for DOT‑certified refillable 1‑lb cylinders and follow the manufacturer’s instructions.
• Consider an adapter hose: Some hoses let a 1‑lb appliance run from a larger tank; verify compatibility and use outdoors.
• Dispose responsibly: For single‑use empties, follow local disposal guidelines or community programs.

Always check for leaks with soapy water, keep cylinders upright, and transport them in a ventilated area.