The Stream33 4" Cast Iron, Plastic, Copper, Steel or Lead coupling is an adaptable and resilient plumbing component, designed for connecting 4" cast iron, plastic, copper, steel or lead to 4" cast iron, plastic, copper, steel or lead pipes. This coupling is resistant to both chemicals and UV rays, ensuring durability under various environmental conditions. It features stainless steel hose clamps that can be securely fastened with a maximum installation torque of 60 lbs., providing a strong and reliable seal. Capable of operating in a wide temperature range from – 30° F to 140° F and handling a maximum test pressure of 4.3 PSI (29.6 KPA), this coupling is ideal for diverse plumbing applications, ensuring seamless and leak proof pipe transitions and compatibility in both residential and commercial settings.