When ordering from the US, parcels may be subject to import tax and duty charges, which the buyer is responsible to pay. Product Description: Commercial Quality Great for Restaurant or Home Special Description: Screw size / pitch of the nozzle rear is 5/16 UNF thread, 24 TPI 4 air holes on sides of nozzle, 4mm in diameter each The orifice is 1.0mm Replacement Tips, Natural Gas, for 23 / 32 Jet Burner Refund or Exchange: All return require Carry Supply pre-authorization, must be made within 30 days of receive, in original condition with packaging (New and Unused), and subject to 20% restocking charge. Exchange or refund. We shall not be liable for any merchandise defects, spoilage of products, loss of sales, or consequential damages. Buyer is responsible for all associated shipping costs for undelivered, unclaimed, or returned packages unless we have made an error in the listing or the item is defective. If you ask for a refund during valid period, we will offer you a refund without postage charges. Shipping and handling charges, insurance are not refundable in any case. MPN Does Not Apply Model Natural Gas Tips Brand Unbranded UPC Does not apply