UNIVERSAL REPLACEMENT BURNER - With Our Gas One Burner Head, You can use it with high pressure or low pressure regulators (High Pressure Regulator is recommended for high output), Good for DIY projects to build your own burner | BRASS FITTING ORIFICE BLOCK - Includes Brass Fitting Orifice block & Air shutter and Spring, Very safe and easy to use, long-lasting and clean | HEAT RESISTANT - Cast Iron