The polypropylene fitting by Green Leaf including hose, pipe, garden hose and nozzle fittings are manufactured in sizes ranging from 1/8 to 4 in. The majority of our polypropylene fittings are made in the USA. Polypropylene fittings are highly durable and chemical-resistant and offered in a variety of thread and hose shank combinations. Our fittings are chosen by distributors for durability and performance in both cold and hot water applications and are resistant to organic solvents, oils, high-impact and high-temperatures.