Propane in Mount Sinai

2 propane locations in Mount Sinai, NY.

Of the 2 propane locations listed in Mount Sinai, 2 offer tank exchange.

Nearby cities in New York with listed propane: Miller Place (2 locations, about 2 mi), Rocky Point (3 locations, about 4 mi) and Setauket (1 location, about 5 mi).

2 locations

7-Eleven

120 NY-25A, Mount Sinai, NY

Tank Exchange

Tank exchange in Mount Sinai (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.

East End Marketing Corp

767 New York 25A, Mount Sinai, NY 11766

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 An out-of-date cylinder cannot legally be refilled.