What is standard propane hose size?
Hose Coming Out of Regulator The hose coming out of your regulator and bringing propane to your appliances will usually have a 3/8" NPT fitting.
Size of hose has no real bering on the amount of propane used just on the amount of propane that can be passed thru it at a given pressure. What is more important is ensuring your total BTUs do not exceed the capacity of your regulator. Most appliances are designed for 1/4 inch fitting.
Gas Hoses and Fittings: Measurements and Hook Up
Note: The grill must have a matching SAE 3/8” male flare (standard on most grills), measure to be sure. Due to the SAE standard, the actual dimension of the male SAE 3/8” fitting is much larger, approximately 5/8” (the inside hose diameter is 3/8”).
the female end of our 3/8" Natural Gas Quick Disconnect Nipple and 3/8" Natural Gas Quick Disconnect Coupler will actually have an inside diameter of about 5/8"
Weight | 12 lbs |
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Dimensions | 12 × 12 × 5 in |
Size | 3/8" x 10', 3/8" x 20', 3/8" x 25', 1/2" x 10', 1/2" x 20', 1/2" x 25' |
What pipe can be used for propane? For most propane yard lines, the piping is usually either copper tubing or plastic polyethylene piping. The materials allowed for propane gas line installation will vary from state to state. Some states do not allow copper piping.
Regardless of the reasoning, we're here to help you successfully and, most importantly, safely, install a hose extension to your barbecue. Please Note: We do not recommend having a hose above 20 feet in length as it might cause a decrease in pressure. Causing your unit to under fire (and nobody wants that!)
There are multiple types of propane hoses, with different fittings on the end meant to work with different types of regulators and appliances. Any hose used for propane service must be approved for that use, and can be made from plastics or rubber, and sometimes are covered in a steel mesh for added durability.
Overloading your gas lines with appliances isn't safe or efficient, as it causes pressure issues that can lead to gas leaks or appliance malfunction. Some homes are only equipped with gas lines that are 3/4 inch (") in diameter, as this is a standard size for supporting major appliances.
Are all propane connections the same?
As a result, specific propane fittings such as t-valves are usually a standard size and thread. This allows them to be connected to most propane cylinders and used for multiple applications at the same time, as long as the regulator for the system allows the pressure to remain consistent enough.
Size: 1/4" NPT Male Thread, connect your propane fitting or the QCC refill adapter. Easy to install. With 1''-20 Female throwaway cylinder fitting.

The following is a list of the sizes for each of the Natural Gas Quick Disconnects: ¼” Female Quick Disconnect – ½” Socket I.D. 3/8” Female Quick Disconnect – 5/8” Socket I.D. ½” Female Quick Disconnect – ¾” Socket I.D. ¾” Female Quick Disconnet – 1” Socket I.D.
AN Size | Hose / Tube O.D. | SAE Thread Size |
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-6 | 3/8 in. | 9/16 in.-18 |
-8 | 1/2 in. | 3/4 in.-16 |
-10 | 5/8 in. | 7/8 in.-14 |
-12 | 3/4 in. | 1 1/16 in.-12 |
We do not recommend connecting more than one hose together as it could impact the performance of the grill. If you require a length greater than 10-ft, we recommend referencing information on hard piping your supply line to your grill found in your owner's guide.
The propane gas service line (also known as the LPG yard line) that runs between the tank and the structure housing the gas appliances is the service piping. Typically, the propane yard line consists of copper tubing or plastic polyethylene piping.
Usually the gas line coming into your kitchen will be 1/2-in. black threaded pipe, and the connection to the stove will be either a male (external threads) or female (internal threads) 1/2-in. fitting.
There are multiple types of propane hoses, with different fittings on the end meant to work with different types of regulators and appliances.
Capacity of Pipe (BTU x 1000) at ½ psi Copper | ||
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Nominal Pipe Size COPPER (in) | Pipe Length (ft.) | |
10 | 40 | |
1/4 (3/8) | 35 | 17 |
3/8 (1/2) | 75 | 35 |