Compact refillable 5 lb steel propane cylinder with OPD safety valve, pre-purged vacuum-ready design, and portable collar for camping, grilling, heaters, fire pits, and outdoor LP gas use.
The Flame King YSN5LB is a compact 5 lb refillable propane cylinder designed for portable LP gas applications such as camping, grilling, ice fishing, outdoor heaters, fire pits, overlanding, and other compatible propane accessories.
This cylinder offers more capacity than disposable 1 lb propane bottles while staying much smaller and easier to carry than a standard 20 lb grill cylinder. It ships empty, pre-purged, and vacuum-ready for filling, with a high-grade welded steel body, powder-coated finish, and OPD valve for safe filling by a qualified propane supplier.
Portable refillable cylinder for grills, heaters, fire pits, camping, and outdoor propane gear
Overfill Prevention Device valve helps prevent overfilling during proper fill service
Smaller size and easy-hold collar make it convenient for travel and outdoor use
Ships empty, pre-purged, and vacuum-ready for filling with propane
This cylinder ships empty and must be filled by a qualified propane filling station before use. Filling, storage, transport, and connection should always follow local codes, propane supplier requirements, cylinder regulations, and the connected appliance’s instructions. The standard YSN5LB model is the OPD valve version. Do not assume a built-in gauge is included unless your specific supplier packaging or SKU confirms a gauge-equipped version.
Before Filling or Use: Confirm the propane appliance, regulator, hose, adapter, storage location, and LP connection are compatible with a 5 lb vertical DOT propane cylinder. This cylinder ships empty and must be filled by a qualified propane supplier before use. Basic Use Steps: 1. Inspect the Cylinder: Check for shipping damage, valve damage, dents, rust, missing markings, or damaged threads before filling. 2. Have It Filled Properly: Take the empty cylinder to a qualified propane filling station. Filling should be completed by trained personnel using proper scale and safety procedures. 3. Secure the Cylinder: Keep the cylinder upright and secure in an approved, ventilated location during storage, transport, and use. 4. Connect Compatible Equipment: Attach only compatible propane regulators, hoses, adapters, and fittings. Do not force threads or use damaged fittings. 5. Leak Check: Perform a leak check with approved leak detection solution after filling or reconnecting. Never use an open flame to check for leaks. 6. Open Valve Slowly: Open the service valve slowly and follow the connected appliance’s lighting or operating instructions. 7. Monitor Fuel Level: Since the standard YSN5LB does not list a built-in gauge, monitor fuel level by weight or with a compatible external gauge if needed. 8. Store Safely: Store upright, outdoors or in approved ventilated areas, away from heat, ignition sources, and enclosed living spaces.
Package Contents: • 1 Flame King YSN5LB 5 lb steel propane cylinder • OPD valve installed • Pre-purged / vacuum-ready empty cylinder as supplied by manufacturer packaging NOT Included — May Also Need: • Propane fuel fill • Built-in gas gauge, unless ordering a gauge-specific model • Propane regulator • Propane hose or pigtail • Adapter for appliances originally designed for disposable 1 lb cylinders • Cylinder mounting bracket, tray, carrier, or hold-down strap • Protective cylinder cover or case • Leak detection solution • Appliance-specific fittings or adapters This listing is for the empty refillable propane cylinder only unless otherwise stated. Confirm all connection parts, adapters, and mounting requirements before ordering.
To confirm compatibility before ordering, have the following ready: • Current cylinder or disposable bottle size being replaced • Available storage height and diameter clearance • Appliance connection type and regulator requirements • Whether a hose adapter is needed for 1 lb disposable-cylinder appliances • Whether the application requires a vertical DOT refillable cylinder • Intended use, such as grill, heater, fire pit, camping stove, torch, or overlanding setup • Any local propane supplier requirements for filling portable cylinders Why this matters: A 5 lb cylinder is portable, but it is not the same connection setup as every disposable cylinder or RV-mounted propane system. Always confirm hose, regulator, adapter, mounting, and ventilation requirements before use.
Match this cylinder by propane capacity, cylinder dimensions, valve requirements, appliance/regulator compatibility, adapter needs, and safe storage/transport requirements. Do not select by capacity alone.
If propane flow or appliance operation problems continue, check fill level, valve operation, regulator, hose, adapters, fittings, leak status, appliance requirements, and safe cylinder positioning before use.
Propane is flammable and must be handled carefully. Always transport and store cylinders upright and secured, use only in well-ventilated approved locations, keep away from ignition sources, and never store propane cylinders inside living spaces. Do not overfill, modify, repair, or use damaged cylinders. If propane odor is detected, close the valve if safe to do so, ventilate the area, avoid flames/sparks/electrical switches, and have the system inspected before use.