Propane in Key Biscayne

2 propane locations in Key Biscayne, FL.

Of the 2 propane locations listed in Key Biscayne, 2 offer tank exchange.

Nearby cities in Florida with listed propane: Coral Gables (2 locations, about 7 mi), Miami Beach (5 locations, about 7 mi) and MIami (89 locations, about 10 mi).

2 locations

7-Eleven

51 Harbor Drive, Key Biscayne, FL

Tank Exchange

Tank exchange in Key Biscayne (1)

Stores listed by the exchange brands' own retailer locators as carrying swap cages for grill-size cylinders. A listing is not a stock check, so call ahead if you need a tank at a particular hour.

Exprezo 123

70 Crandon Blvd., Key Biscayne, FL 33149

Tank Exchange · Blue Rhino

Directions Call store

Listed in Blue Rhino's retailer locator, checked Sep 27, 2026.

Before you go

Refill vs. Tank Exchange: What You Actually Get

Exchange trades a tank; refill sells you gas by the gallon. The difference in what you get home with is larger than most people expect.

When Does a Propane Tank Expire?

Twelve years from the date stamped on the collar, then a requalification interval that depends on the test method. An out-of-date cylinder cannot legally be refilled.