SHARKBITE 3/4” Push-to-Connect 

Brass Polybutylene Adapter

U4016LFZ-NEW

This fitting is designed specifically to 

transition from old polybutylene (PB) pipe—

commonly used in homes from the late 

1970s through the mid‑1990s—to modern 

pipe types such as PEX, copper, CPVC, 

or PE‑RT.

Push‑to‑Connect Installation:  

No crimp rings, clamps, soldering, or glue 

needed. Just push the pipe in.

Works on Wet Lines:  

Can be installed even if the pipe isn’t fully drained.

Lead‑Free Brass Body:  

Durable, corrosion‑resistant, and safe for 

potable water systems.

High Performance

Double the burst pressure (Max series)

Can be rotated after installation and removed 

with a disconnect clip.

New old stock.  In original sealed packaging.