Tretco BK3P-18LP 18 x 0.5 in. Firepit Pro Connection Kit Liquid Propane

Professsional Quality Components, 18 x 1/2 inch Non-Whistle Flex Line, 1/2 inch Keyed Ball Valve, 1/2 inch LP Air Mixer,You may also like Tretco BK3PHC30-NG 30 x 0.5 in. Hazard Class Firepit Pro Connection Kit Natural Gas.