Gas Fireplace Fittings

From elbows to adapters, gas fireplace fittings connect and route your gas line safely to your fireplace or appliance. Shop fittings sized and threaded for your installation below.

Gas Fireplace Fittings

Every gas fireplace installation depends on a properly connected gas line, and fittings are the small but essential parts that make those connections secure. Whether you're routing a line around a corner or adapting between pipe sizes, having the right fitting on hand keeps your installation safe and leak-free.

Common Types of Gas Fittings

  • Elbows & tees — route gas lines around corners or split a line to multiple appliances.
  • Adapters — connect pipe or fittings of different sizes or thread types.
  • Couplings & unions — join lengths of pipe or allow a line to be disconnected for service.
  • Caps & plugs — seal off unused line ends.

What to Consider When Buying Gas Fittings

  • Thread type & size — confirm you're matching the correct thread pattern and diameter for your gas line.
  • Material — brass and steel fittings are common, and material choice can affect corrosion resistance.
  • Natural gas vs. propane — some fittings are rated for both, while others are fuel-specific.
  • Professional installation — gas line connections should be installed and pressure-tested by a licensed technician.

Frequently Asked Questions

  • Can I mix and match fitting brands on my gas line?

    Fittings of the correct thread type and size will typically connect regardless of brand, but always verify compatibility and pressure ratings before installing.

  • Do I need a permit to install gas fittings?

    Many local jurisdictions require a permit and inspection for gas line work — check with your local building department before starting.

  • How do I know if a gas fitting is leaking?

    A licensed technician will typically test connections with a gas leak detector solution or electronic sniffer — never use an open flame to check for gas leaks.