Sioux Chief 305-7120 1/2" Compact PEX Crimp Ring

Sioux Chief 305-7120 1/2" Compact PEX Crimp Ring

The Sioux Chief 305-7120 is a 1/2" compact PEX crimp ring built for rough-in plumbing work where tubing and fittings connect behind walls, under floors, or inside tight mechanical spaces. Sized for 1/2" PEX tubing, this compact crimp ring gives plumbers and contractors a low-profile way to complete a PEX joint without adding bulk at the connection point. As part of the Sioux Chief 305 series of crimp rings, the 305-7120 is designed to work with a standard PEX crimp tool to compress the ring around the tubing and fitting barb, forming the joint used on countless residential and light-commercial supply line runs. Rough-in crews reach for compact crimp rings like this one specifically because they need a connection that stays out of the way once the wall, ceiling, or floor cavity is closed up, and a supply of 1/2" rings on the truck keeps a PEX manifold or fixture run moving without a parts-house run mid-job.

Key Features

• Trade Size: Sized for 1/2" PEX tubing, matching common residential and light-commercial supply line runs.
• Compact Profile: A compact ring design that reduces the footprint of the finished crimp connection, useful in tight rough-in cavities, stud bays, and mechanical chases where clearance is limited.
• Crimp Connection: Installs with a PEX crimp tool, compressing the ring around the tubing and fitting barb to form a secure joint.
• Model 305-7120: Part of the Sioux Chief 305 series of crimp rings used across PEX rough-in plumbing installations.
• Rough-In Ready: Sized and profiled for behind-the-wall and under-floor PEX runs rather than exposed decorative plumbing.

Technical Specifications

• Refer to manufacturer documentation for complete technical specifications.

Typical Applications

• Residential and Commercial Rough-In Plumbing
• PEX Supply Line Connections Behind Walls and Under Floors
• New Construction and Remodel Plumbing Installations
• Tight Mechanical Chases and Stud Bay Installations
• PEX Manifold and Fixture Supply Runs

Why Sioux Chief?

Sioux Chief is a long-standing supplier of rough-in plumbing hardware for trade professionals, and the 305-7120 compact crimp ring is built for the everyday 1/2" PEX connections plumbers rely on behind the wall. Keeping a stock of Sioux Chief crimp rings on hand means a rough-in crew can complete PEX joints on the spot rather than waiting on a special order. Keep the Sioux Chief 305-7120 crimp ring on the truck for a dependable, low-profile PEX joint on the next rough-in job, whether it's new construction, a service call, or a remodel where working space is tight.