Flame King YSN-301 Propane Tank-30 Pound Refillable Steel Cylinder with Type 1 Overflow Protection Device Valve-DOT and TC Compliant, 30lb, White $40.44 B003UHVVV2
Flame King YSN401 40 Lb Steel Propane Cylinder with Overflow Protection Device Valve, White $99.99 B004LZN5ES
Flame King 231786 Propane Gas Tank Level Indicator Check Guage Easy to Read, Leak Detector, Universal Fit-231786 $17.99 B005N3LT5O