500 gallon below ground ASME steel propane tank with riser

Built for dependable performance, the 500 Gallon Underground Propane Tank For Sale gives you reliable propane storage you can count on season after season. Available now at Propane Tank Traders for $1,350, it ships anywhere in the contiguous United States for a flat $350 freight fee. Every 500 gallon underground propane tank for sale we sell is inspected and verified to meet strict ASME safety standards before it leaves our facility. Whether you are buying new or choosing a certified used unit at a lower price, you get equipment that is safe, compliant, and built to last. Below you will find full specifications, ideal applications, delivery details, and answers to the questions buyers ask most about the 500 gallon underground propane tank for sale. 500 Gallon Underground Propane Tank For Sale Specifications Water capacity: 500 gallons (about 400 usable gallons at the safe 80% fill level) Energy storage: roughly 45,750,000 BTU of propane when full Certification: ASME-certified pressure vessel with data plate and service valves Installation: engineered for underground (below-ground) installation Exterior: durable, UV-resistant white coating Condition: available new or as an inspected, certified used tank Price: $1,350, with flat $350 nationwide freight Every 500 gallon underground propane tank for sale is backed by our commitment to quality and safety. If you need help confirming the right specification for your property, our team is a phone call away. How Much Propane Does the 500 Gallon Underground Propane Tank For Sale Hold? Propane tanks are filled to a maximum of 80% to allow for safe vapor expansion, so a 500 gallon underground propane tank for sale holds about 400 usable gallons. That reserve translates into roughly 45,750K BTU of stored energy — enough to keep deliveries infrequent and your supply steady through peak demand. Choosing the right size up front saves money and hassle. Size up if you live in a cold climate, run multiple propane appliances, or want a larger buffer against winter price spikes. Our propane tank buyers guide breaks the math down by home size and appliance load. Ideal Applications for the 500 Gallon Underground Propane Tank For Sale The 500 gallon underground propane tank for sale is the go-to choice for whole-home heating in houses from roughly 1,500 to 4,500 square feet, comfortably supporting central heat, hot water, cooking, and a standby generator. Pairing the right tank with professional installation ensures safe, efficient operation for decades. Not sure whether above-ground or underground is right for you? Both are safe and ASME-certified — it comes down to aesthetics, space, and budget. Nationwide Delivery & Installation Your 500 gallon underground propane tank for sale ships anywhere in the lower 48 states for a flat $350 freight fee , with most orders arriving in 3–10 business days. You can follow your shipment any time on our order tracking page. For full timelines and coverage, see our shipping policy . Have a question before you buy? Contact our team for personalized guidance on sizing, placement, and your first fill. ASME-Certified Quality You Can Trust Every 500 gallon underground propane tank for sale meets the strict ASME safety standards recognized by the American Society of Mechanical Engineers . We inspect and verify each unit before shipment, so the product that arrives is safe, compliant, and ready for service. Learn more about Propane Tank Traders and why customers nationwide trust us for new and used propane equipment. Why Buy Your 500 Gallon Underground Propane Tank For Sale From Us Propane Tank Traders is America’s trusted marketplace for new and used propane equipment, serving homeowners, contractors, farms, and industry nationwide. When you order a 500 gallon underground propane tank for sale from us, you get: Honest, transparent pricing — $1,350 with a flat $350 freight fee and no hidden surcharges ASME-certified equipment inspected before every shipment Fast, reliable delivery to all lower-48 states Knowledgeable support to help you buy with confidence From your first question to your first fill, we make buying a 500 gallon underground propane tank for sale simple, safe, and straightforward. Explore the rest of our propane tank collection or read our buyers guide to compare your options. Ordering, Safety & Support Buying propane equipment online should be simple and worry-free. When you order from Propane Tank Traders, your purchase is backed by responsive support, secure checkout, and clear, upfront pricing. We are glad to answer questions about compatibility, placement, local code requirements, and scheduling delivery or your first fill. Safety comes first on every order. Each unit ships with the correct valves and fittings, and we recommend professional installation along with a leak check at every fill. Keep the surrounding area clear, schedule periodic inspections, and never modify valves or fittings yourself. With proper care, quality equipment delivers safe, reliable service for many years. Still deciding? Compare your options in our buyers guide , read answers to common questions , or simply reach out and we will point you in the right direction. Frequently Asked Questions About the 500 Gallon Underground Propane Tank For Sale Is the 500 gallon underground propane tank for sale new or used? We offer both. New units carry manufacturer certification; used units are inspected and verified to meet ASME standards before shipping. How much does shipping cost? A flat $350 per order to the lower 48 states, regardless of size. More details are in our FAQs . Can I get help choosing the right option? Absolutely. Call us and we will help you match the 500 gallon underground propane tank for sale to your exact needs. What payment methods do you accept? All major cards, PayPal, and wire transfer for larger orders. Order the 500 Gallon Underground Propane Tank For Sale today and get ASME-certified quality delivered to your door for a flat $350. Questions? Call (501) 218-9328 or browse our full propane tank inventory .