Features
- Automatic rotating capability for even expansion
- Color coded for easy size identification
- Chrome and black zinc platings for durability and corrosion resistance
- Backward compatible with Milwaukee ProPEX heads
Specifications
| Size | 1-1/4 in. |
| Number Of Pieces | 1 |
| Includes | (1) 1-1/4 in. expander head |
| Compatibility | Compatible with 1-1/2 in. PEX expanders; backward compatible with Milwaukee ProPEX heads |
| Finish | Chrome and black zinc plating |
| Function | Automatic rotation for even expansion |
| Color Coding | Color coded for size identification |
| Warranty | 3 Year Limited Warranty; 1 Year Free Service; 90 Days Satisfaction Guaranteed |
PEX expander head sized for 1-1/4 in. tubing. Designed to attach to compatible 20V PEX expander tools, it provides automatic rotation for even expansion and uses chrome and black zinc platings to resist corrosion. The head is color coded for size identification and is backward compatible with ProPEX expansion heads.
Project Ideas
Business
Main-Line Upgrade Service
Offer a niche service upgrading old galvanized/copper domestic mains in small commercial and multifamily buildings to 1-1/4 in. PEX-a. The expander head’s auto-rotation delivers consistent expansions on large-diameter fittings, speeding installs and reducing callbacks on big trunks and meter-room manifolds.
Prefab 1-1/4 in. Manifolds
Fabricate and sell pre-assembled 1-1/4 in. PEX-a trunk manifolds with ProPEX ends for contractors and DIYers. Ship labeled, pressure-tested assemblies (main header with multiple reducing takeoffs) that can be quickly expanded onto on-site lines, saving labor and ensuring quality.
Radiant/Boiler Room Backbones
Specialize in installing boiler-room backbones: 1-1/4 in. PEX-a supply/return trunks, mixing blocks, and zone manifolds for radiant heat and snow-melt systems. Market fast turnaround and leak-free performance thanks to consistent, even expansions on large fittings.
Temporary Water Bypass Solutions
Provide rapid-response 1-1/4 in. PEX-a bypass lines for property managers during valve failures or main repairs. Pre-build bypass kits and use the expander head on-site to tie into existing lines, minimizing tenant downtime and creating a lucrative emergency service niche.
Tool + Head Rental With On-Demand Fitting
Rent a 20V PEX expander with the 1-1/4 in. head to contractors who rarely need large-diameter expansion, and offer optional on-site fitting/consulting. The color-coded, corrosion-resistant head reduces misuse, while add-on services (pressure testing, quality checks) boost revenue.
Creative
Rainwater Garden Header
Build a high-flow 1-1/4 in. PEX-a trunk line from your rainwater tank to multiple garden zones. Use the expander head’s automatic rotation for perfectly even expansions on large-diameter ProPEX fittings, then branch down to 3/4 in. or 1/2 in. lines for beds and drip zones. The corrosion-resistant head is ideal for outdoor work, and the color coding keeps sizes straight while you assemble a clean, serviceable manifold wall.
Greenhouse/Garage Radiant Manifold
Create a hydronic radiant heat system with a 1-1/4 in. PEX-a supply/return trunk feeding multiple radiant loops. The even expansion from the head helps ensure leak-free joints on large-diameter connections at the boiler, mixing valve, and manifold. This gives you a neat, efficient backbone that minimizes head loss and supports future expansion.
Backyard Wash Station
Install an outdoor shower and pet wash with a 1-1/4 in. PEX-a main that reduces pressure drop across long runs to the patio. Expand to large ProPEX fittings for the trunk, then step down near fixtures. The durable plating on the head withstands occasional damp storage and the auto-rotation makes quick, uniform expansions even in awkward positions.
Pond/Water Feature Supply Trunk
Run a 1-1/4 in. PEX-a header to feed waterfalls, bubblers, and aeration points around a koi pond. The larger trunk reduces pump strain and improves flow to multiple features. Use the expander head to make consistent expansions on large fittings for a clean, reliable waterscape infrastructure.
Workshop Utility Manifold
Build a central 1-1/4 in. PEX-a water manifold for a workshop or brew shed with branches for sinks, hose bibbs, and equipment. The head’s backward compatibility with ProPEX-style fittings gives you wide fitting choices, and the even expansion helps ensure solid joints on the high-flow main.