Thank you for viewing! [New Version] Implemented [Elbow Back Low Short Type] Pressure Reducing Valve Kit [Sold Separately] Air Valve (+1,999 yen) is also available. Maximum working pressure 60KG (Image 8) If you leave a comment, we will change the price to a set price. The current new 17 Super Great (April 2017) has an air pressure of approximately 13 kgf/cm2, and in the case of an air horn, it may not operate properly (sound distortion, diaphragm damage, solenoid valve malfunction). Kishun valve (malfunction, air leaks, internal link damage, etc.) There are problems, and it is necessary to adjust with a pressure reducing valve to about 8 kgf/cm2 to 9 kgf/cm2. [Pressure Reducing Valve Set Contents] ① Pressure reducing valve (with stay) compatible up to 15kg ② Elbow (Made in Japan) ③ One-touch coupler (Made in Japan) ④ Special size bushing screw (Compatible with two types of tank screws, front and back) ⑤ Seal tape ⑥ Installation manual with color photos will be enclosed [After-sales follow-up is also possible] [Brass] The special size bushing screw was manufactured based on the original. (Made in Japan) The bushing screw can be used for both blind plugs and test nipples. It is possible to take out from 3 locations: elbow direct → hexagonal taper screw. The pressure reducing valve is certified by the international standard ISO9001・2015 (quality) and can handle up to 15 kgf/cm2, so you can use it with peace of mind. The pressure reducing valve is checked for operation at the time of shipment and will be shipped set to approximately 8kg〜8.5Kgf/cm2. Elbow maximum working pressure 140Kgf/cm2 Air coupler 15Kgf/cm2 has been selected. In addition, we are not responsible for any accidents, injuries, damage, or any other cases that may occur during installation. [Notes] Regarding receipts, we do not issue them as we are selling as an individual. Please understand. The appearance varies depending on the company. Please check the images carefully and confirm that it can be installed before purchasing. Please refrain from asking questions regarding the diameter and size of the screws. Please refrain from price reductions. [Regarding Returns] Please contact us within one week for initial defects. Please check as soon as possible after receiving it. [Regarding Shipping] Shipping is possible on Sundays, holidays, and consecutive holidays. We will send it by Takkyubin Compact. Thank you for reading to the end.