Material: brass/stainless steel Size:1/2 /3/4 Standard: ISO CE Colors: brass/stainless steelApplications  ● Cold or hot water supply  ● Heating system including flooring heating, wall heating and radiant system  ● Industrial liquids transportation ● have lots of availbale size and model Product feature: Compress fitting with staineless steel and brass two material for choose. Durable, pressure-resistant, and explosion-proof The clampling part uses a staineess stell thin-walled ring sleeve. With the help of clamping pliers.The pipe and the o-ring are fully contacted withou gas.There are three sections of serrated ring grooves on the core to form a three-stage labyrinth seal structure to enhance the sealing effect. Doulbe O-ring selas are used to form two selas after connection .When heat expands and cold contracts .the seal rings will automatically rebound and seal.Which is not easy to leak. Product advantage: To support global economic, our company will offer best quality with best price.And we can offer sample for free. Our parent company is one of best plastic pipe machinery producer in China, with developed technology and quality control system,we have confidence to cooperate & support you well. As a professional producer of piping system products in China, we really hope to cooperate with your esteemed company. We willoffer our best offer to support your business.