Product: Stanbroil 3/8" X 18" Non-Whistle Flexible Flex Gas Line with Brass Ends for Natural Gas or Liquid Propane Fire Pit and Fireplace
Brand: Stanbroil
Color: Black
Key Features:

 - This Non-whistle corrugated flex gas line is designed for indoor and outdoor use with gas ranges and furnaces. 
 - Naturally corrosion-resistant to increase flexibility quality flared end fittings to prevent liquid leakage. 
 - Provides extra corrosion protection from accidental contact with common household chemicals. 
 - Non-whistle corrugated flex gas line connector can be used for fire pit and fire pit pan.

  Compatibility:

 ✔ Propane
 ✔ Natural Gas
 ✔ Gas Fire Pits
 ✔ Gas Fireplaces
 ✔ Gas Log Sets

  Tips for checking and addressing problem of whistling

 ➤ Flex Line Problems: 
 1) Used a whistle-free line with varying ridge sizes, which helps to eliminate noise.
 2) Chosen a line with a wider diameter to minimize whistling by allowing the right amount of gas to flow to the burner at a lower rate of speed.
 3) Taken care to avoid sharp 90-degree turns and/or kinks in the line during installation.

 ➤ Gas Pressure is Too High
 ~ When a high level of pressure is applied to a small opening, the result is a whistling sound. This is the mechanism at play when the line pressure in your fire pit gas installation is too high.

 ~ Since natural gas is typically transported at high pressures, a regulator is often required to mitigate this pressure before the gas reaches the burner (Keep in mind that this work should only be performed by a gas installation professional, since they have the know-how to size and install the proper regulator for your fire pit configuration). Pressure guidelines are as follows:
. Natural gas: Between 3.5” WC and 7” WC.
 Propane: 7” WC and 11” WC

Easy to installation and use, highly durable, Corrugated flexible flex gas line with feature of high temperature resistance
3/8" OD x 1/4" ID 18 inch Stainless steel pipe coated black gas line with fittings
3/8" Male Flare x 1/2" Male NPT fitting end, 3/8" Male Flare x 1/2" Female NPT Fitting. Brass 90 degree fitting for customer connection convenience
CSA certified, fit for NG or LP fireplaces and <90K BTU fire pit and fireplace burners
There is a staggered pitch every 2" to Eliminate Whistling

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