The product is a 4 pack of VIEGA ProPress #77460 Tee fittings, designed for copper plumbing with a 3/4" diameter. These push-to-connect fittings are manufactured in Germany by the reputable brand Viega. The tees have a push-to-connect feature on end C, allowing for easy installation without the need for additional tools. The set includes 3 units of the tee fitting, making it convenient for various plumbing projects that require this specific diameter and material. Additionally, the free shipping option ensures cost-effectiveness for customers.