All propane tanks must have OPD valves or they will not be refilled
Single Loop Logic Solver for Tank Overfill Protection
Vertical Propane Tank, 10# (~2.4gal)
Steel Propane Tanks & Accessories at
Propane tank safety tips Arizona homeowners should know
I've got a propane bottle that when I open the valve slowly it makes a quiet hissing and then stops as I continue opening it. Is it a cause for concern, or
Can you get money for old propane tanks? - Quora
Flame King 30 lb propane tank is safety tested, constructed from high grade steel and powder coated for durability with premium OPD valve. Propane
Flame King 30 Pound Steel Propane Tank Cylinder with Type 1 Overflow Protection Device Valve | Flame King Propane Tank Gauge Level Indicator
Overfill Protection Devices for propane tanks now the law
Propane Services Steel City Carwash