Specification: Easy to assemble and use. Machine brands include Rilon, Riland, Jasic, Mitech, Chiry, UNT, Krypton, Longetivity, Berlan, etc. This kit is suitable for all WP-9/20/25 series air-cooled welding torches under shielding gas atmospheres, PTA-9 PTA-9V PTA-9 PTA-20V PTW-25 Tig welding torches, Miller Diamondback DB9 DB9V DB20 DB20V DB25 Tig welding torches. Advantages of Transparent Shielding Cup:* Provides welder with excellent vision and comfortable feeling when welding. It is specially designed to help precision welding and small jobs that require a very clear view of the location. For example: it is widely used together with our Fortuneweld brand PCW220 precision cold welding machine.* It helps to evenly distribute the welding gas and helps to improve the welding quality. In addition, compared with ordinary ceramic shielding cups, it can also help you save at least 30% gas.* Widely compatible with original spare parts TIG welding torch. In these cases, A) #10 welding WP9/20/25/24 transparent shielding cup, you need to buy extra o-ring based on other spare parts from the original factory to complete the whole spare part. B)#12 big and small welding WP17/26/18 transparent shield cup, based on other original spare parts, you need to buy extra o-ring to finish the whole spare part. It is very easy to install. Just press the transparent shielding cup, the installation is firm and seamless. Package Included:1 x #10 Heat Resistant Glass1 Piece x 41V35 Middle Back Tig Welding Cup1 Pack x 45V44 Chuck Body Gas Lens, Suitable for 2.4mm 3/32" Tig Welding1 Piece x 13N23 2.4mm 3/32"4 O-Rings High Temperature Resistant