This listing is for a bag of 4- 1 1/4" Female Sweat to 1 1/4" Pex Crimp. These fittings are made from lead-free brass, ensuring safety and durability. Designed to meet ASTM standards, it is compatible specifically with Pex B piping and works with copper crimp rings or stainless steel clamps for secure connections. Ideal for reliable, long-lasting installations. Fittings ships quickly with over 300 units in stock. Note that it is only compatible with Pex B tubing, not other plastic pipes. Choose this fitting for expert-grade performance and peace of mind in your plumbing and heating projects.