Can Tap Valve NPTC-CH340 for all freon gas can. Quick Detail: Brand Name:NPTCFunction: for all gas usePlace of origin:Zhejiang China(mainland) Packaging & Delivery:Packaging Detail:standard export packaging,Its also Depending on Clients Requests.Delivery Detail:20-30days after receiving the depositSpecification:Can Tap ValveNPTC-CH340 for all freon gas can. CH-340 Can Tap Valve