All parts is made of Stainless steel and brass gas jet nozzle. Highly resistant to corrosion compared to other metals. This is not made from hardware store plumbing parts . Not like other seller’s black iron pipe that has a short life because easily corroded in hot circumstances. The kit including: 1: Adjustable High Pressure Propane Regulator 0–30 psi , 5 ft long (150cm). The male end connects a standard size propane USA QCC-1/Type-1 tank and the female end attaches to a 5/8” flare fitting. Fit with USA, Canada, Mexico, Australia propane tank. 2: We use 1″ O.D. feed tube and 2″ O.D. air choke allow for maximum air flow with a proper size gas port tuned to produce higher BTU with less propane , this design is more efficient and saves you money on propane cost , and can run at lower gas pressure and produces a NEUTRAL flame with no need to adjust air flow , the burner is self adjusting and drafts the proper amount of air based on fuel pressure . 3: We use 1-15/16″=48.5mm O.D. wide flame cone on the bottom and has more than enough heat for medium size forges. * Orders Shipping within 1 or 2 day with tracking number . Pick up or Cash is not allowed. * 30 days for an exchange,return or refund . * We have 3 warehouse in East,Central and West of USA. We will ship it from the warehouse nearest to you. so you can receive it in 2–5 days.