The kit includes heads for 1/2", 3/4", and 1" PEX-A pipes.

Once fittings are inserted, the PEX-A material’s elastomeric properties return around the fitting, creating a permanent, visually inspectable seal.

Some users observed slight over-expansion initially; connections may take some time to fully seal, but performance is reliable once settled.

Compatible with popular brands such as Uponor ProPEX, Sioux Chief PowerPEX, Everflow PexFlow, Apollo ExpansionPex, and more.

The main difference lies in the rotation mechanism. The IWS‑1960 requires manual rotation of the expansion heads, which is cost-effective and reliable for occasional or DIY projects. The IWS‑1960DT features automatic rotating heads, reducing wrist strain, saving time, and improving workflow efficiency—especially in tight spaces or for professional, repeated installations.