Hello everyone, when buying pneumatic connectors, look for Shenwei Pneumatic. We have three-way connectors, straight through connectors, threaded connectors, T-shaped three-way connectors, stainless steel card sleeve connectors, stainless steel quick twist connectors, and stainless steel quick plug connectors. We are a true connector manufacturer with reliable quality and thoughtful service. All products are shipped directly to your home via SF Express. Don't hesitate to contact us. Shenwei Pneumatic wishes you and your family good health, all the best, and abundant wealth!