No product in this list is identified as a multi valve for a 500-gallon propane tank. The listed replacement valves are described for 100-pound or 30-pound cylinders, so they should not be treated as suitable for a 500-gallon tank. For that tank size, confirm the exact valve specification with the tank manufacturer or a qualified propane professional. The options below are relevant comparisons for smaller cylinders, not confirmed 500-gallon replacements.
| Product | Best For | Key Detail |
|---|---|---|
| Generic 100–200 lb. Multi Service Valve | Matching listed connection and dip-tube specifications | 3/4-inch NGT connection; 11.6-inch dip tube |
| Flame King 100 lb. Multi-Valve Tank | Buyers seeking a cylinder with an integrated multi-valve | Service, filler, relief, and POL valves |
| BBQHKCX 100 lb. Service Valve | 100-pound vapor-cylinder valve replacement | 10.2-inch dip tube; automatic and manual relief |
| TUGOHYL 100 lb. Service Valve | 100-pound cylinder service-valve replacement | Solid brass; automatic and manual bleeder valves |
| Flame King 100 lb. Propane Cylinder | Buyers comparing a cylinder with a POL valve | Steel tank with premium POL valve assembly |
Generic 100–200 lb. Multi Service Valve
This valve is listed for 100-pound to 200-pound propane cylinders. Its stated specifications include an 11.6-inch dip tube, a 3/4-inch NGT connection, and a 375-PSIG pressure-relief setting.
Best for: Buyers comparing replacement multi-service valves for a cylinder whose specifications match those details. It is included because it is the list’s clearest standalone multi-service-valve option.
Limitation: The listing does not identify it as a 500-gallon tank valve. Do not assume the connection or pressure setting fits a larger stationary tank.
Flame King 100 lb. Multi-Valve Tank
This is a 100-pound propane tank with an integrated multi-valve, rather than a valve sold by itself. The listed assembly includes a service valve, high-capacity filler valve with integral back-check, 375-PSIG pressure-relief valve, and POL valve. Its steel construction is powder-coated.
Best for: Buyers who need a 100-pound cylinder and want the listed service and filling components in one assembly. The product information also describes on-site refilling without disconnecting appliances.
Limitation: It is a 100-pound tank, not a 500-gallon tank or a confirmed valve replacement for one.
BBQHKCX 100 lb. Service Valve
The listing describes a solid-brass service valve for a 100-pound propane tank. It specifies a 10.2-inch dip tube, POL connection, heavy-duty handle, and automatic and manual pressure-relief features. The stated automatic relief setting is 375 PSI for propane.
Best for: Buyers researching a service-valve replacement for a 100-pound vapor cylinder, provided the tank’s required specifications match the listing.
Limitation: The product information calls for a leak test after installation. It does not establish compatibility with a 500-gallon tank, and valve installation should be handled by a qualified professional when required.
TUGOHYL 100 lb. Service Valve
This replacement service valve is described for a 100-pound propane tank. Listed features include solid-brass construction, a heavy-duty handwheel, automatic and manual bleeder valves, and a 375-PSI automatic relief setting for propane.
Best for: Buyers comparing a 100-pound cylinder valve with both automatic and manual pressure-management features. It is a closer match for that cylinder category than for a large stationary tank.
Limitation: The listing says to perform a leak test after installation. It does not provide evidence that this valve fits a 500-gallon tank.
Flame King 100 lb. POL Cylinder
This product is a 100-pound steel propane cylinder with a POL valve assembly, not a standalone multi valve. The listed details include powder-coated exterior protection and manufacturer-described X-ray and hydrostatic testing.
Best for: Buyers comparing a complete 100-pound cylinder with a POL valve, rather than sourcing a replacement valve for a large tank.
Limitation: A POL valve assembly on a 100-pound cylinder is not a substitute for a tank-specific multi valve for a 500-gallon tank.
Buying Guide: How to Choose a Valve for a 500-Gallon Tank
How do you verify that a valve fits?
Start with the tank’s manufacturer, model, and existing valve specifications. Confirm the connection type and size, valve function, dip-tube requirements, pressure-relief setting, and any tank-specific requirements with the manufacturer or a qualified propane professional. A product described for a 100-pound cylinder should not be presumed suitable for a 500-gallon tank.
Do you need a multi valve or a service valve?
These terms can refer to different functions. A multi-valve assembly may combine service, filling, and pressure-relief components. A service valve may provide a connection for vapor service but not include the same filling components. Identify which function the tank requires before comparing products.
What do connection and dip-tube details mean?
Connection descriptions such as 3/4-inch NGT and POL identify different interface details; they are not interchangeable by assumption. Dip-tube length is another product specification that must match the tank and intended valve application. Compare the tank documentation with the exact valve data rather than relying on the tank’s capacity alone.
Who should install a replacement valve?
Use a qualified propane professional for tank-specific selection and installation. Valve work can involve pressurized, flammable fuel, and an incorrect fit or installation can create serious hazards. Follow applicable local requirements and have the system checked for leaks before it is returned to service.
Frequently Asked Questions
Are any listed products confirmed to fit a 500-gallon propane tank?
No. The listed valve products are described for 100-pound to 200-pound cylinders or a 30-pound cylinder. None is identified as a 500-gallon tank valve.
Can I use a 100-pound multi valve on a 500-gallon tank?
Do not assume so. Verify the required valve using the tank manufacturer’s specifications and a qualified propane professional.
What is included in the Flame King 100-pound multi-valve assembly?
The listing says it includes a service valve, high-capacity filler valve with integral back-check, pressure-relief valve, and POL valve.
Does a POL cylinder valve count as a complete multi valve?
Not necessarily. A POL valve assembly and a multi-valve assembly can have different functions. Confirm the required components for the specific tank.
Should a propane tank valve be installed without professional help?
For a 500-gallon tank, use a qualified propane professional to select and install the valve and verify the system before use.