Product Description
Milwaukee 3/8 in. ProPEX Expansion Head for M12 Expansion Tool
Model Number: 49-16-2403
The Milwaukee 49-16-2403 is a 3/8 in. ProPEX Expansion Head for the Milwaukee M12 ProPEX Expansion Tool — the interchangeable expansion head for expanding PEX-A tubing at the 3/8 in. diameter for ProPEX fitting connections in residential plumbing, radiant heating, and hydronic systems where the smallest standard PEX tubing size is used for fixture supplies, branch lines, and small-load applications. The 3/8 in. is the smallest standard ProPEX connection size — used for individual fixture supply connections from manifolds, low-flow fixture branch lines, and specific radiant heating circuit applications where the 3/8 in. flow capacity is sufficient for the load being served. The Milwaukee M12 expansion tool's battery-powered motor performs the expansion cycle consistently with each squeeze of the trigger, expanding the PEX-A tubing end and its ProPEX ring for the thermal memory contraction that creates the watertight, code-compliant connection around the fitting body.
The 3/8 in. expansion head is interchangeable with other M12 ProPEX expansion head sizes — tool-free head changes allow the same M12 expansion tool to service all standard ProPEX connection sizes encountered on residential plumbing projects, from 3/8 in. through 1 in., without requiring a dedicated tool for each size. Milwaukee manufactures the expansion head to the ProPEX system's dimensional requirements for the correct expansion diameter and depth that produces reliable, leak-free connections meeting plumbing code compliance requirements. The M12 cordless platform's compact dimensions and one-handed operation provide practical advantages in the tight spaces of under-sink cabinet access, wall cavities, and the confined mechanical spaces of residential plumbing installation.
See Milwaukee's complete ProPEX Expansion Head lineup for all available sizes and for the M12 ProPEX Expansion Tool platform details.
Features
- 3/8 in. for fixture supplies, branch lines, and small-load PEX-A applications
- Interchangeable with other M12 ProPEX heads — one tool for all PEX-A sizes
- Correct expansion diameter for reliable, code-compliant ProPEX connections
- M12 cordless for consistent expansion in confined residential plumbing spaces
- Available for 1/2 in. and 3/4 in. for complete residential ProPEX coverage
Specifications
- Size: 3/8 in.
- Type: ProPEX Expansion Head
- Compatible Tool: Milwaukee M12 ProPEX Expansion Tool
- Application: PEX-A Tubing ProPEX Connections — Residential Plumbing
Includes
- (1) Milwaukee 49-16-2403 3/8 in. ProPEX Expansion Head
