Built to Grip Tight.
Engineered to Last.
Professional-grade insert fittings for polyethylene pipe, irrigation systems, yard hydrants, and water wells. Designed for secure connections, leak-free performance, and long-lasting reliability.
Better Materials. Better Fit. Better Long-Term Performance.
Why Ours?
- Full set of insert barbs
- Hex body for wrench convenience
- Female thread fittings available
- Extra-long insert barb fittings available
- Pipe repair insert couplings with union
- Built to last and resist corrosion
Why Not Others?
- Short barbs
- Lack of female thread fittings available
- No extra-long insert barbs available
- Low copper content and high zinc content
- Cost cutting materials crack quickly
Choose the Right Insert Fitting for the Job
From longest-lasting premium materials to cost-effective standard fittings, Merrill offers all types of insert fittings for water wells, irrigation, hydrants, and specialty applications.
Premium
Longest-lasting
difficult environments
No-Lead Bronze
Easy Install,
Non-Corrosive
Stainless Steel
Strongest,
Non-Corrosive
High-Value
Dependable
performance
No-Lead Brass
Standard Duty,
Non-Corrosive
Steel PLated
Stronger,
Rough Duty
Economy
Cost-effective for
standard applications
Nylon
Stronger Plastic,
Medium Duty
PVC
More Rigid,
Standard Fitting
Poly
Flexible,
Lowest Cost
Specialty
Unique parts for
specific needs
Hydrant Elbow & Tees
Hydrant-Ready
Fittings
Rope Adapter
Secure Pump
Removal
Geo Thermal
Energy-Efficient
Pipe Repair
Emergency-
Ready Fix
Union Included
Disconnect
Feature
Features and Benefits
bronze insert tee
for secure installation
flexible polyethylene pipe
insert
flexible polyethylene pipe
base and flat sides to hold
when pushed onto poly pipe
Insert. Clamp. Tighten.
1. Add Hose Clamps
Insert flexible pipe onto the barbed ends.
2. Insert the Pipe
Install hose clamps over the pipe.
3. Tighten Securely
Secure by tightening the hose clamps.
Trusted for Tough Connections
See what customers are saying about Merrill insert fittings.
Common Questions
What if my big-box insert fittings leaked?
They often leak because of thin walls and shallow barbs. Merrill insert fittings are machined for true SIDR poly fit and pull-off resistance.
Can I install these myself?
Yes. If you can cut pipe and tighten a clamp, you can install poly insert fittings confidently.
Will these fittings fit my poly pipe?
Yes. They’re made for common polyethylene water lines in 1/2", 3/4", 1", 1-1/4", 1-1/2", 2" and larger sizes.
Can I use them for wells or irrigation?
Absolutely. These are the same barbed insert fittings pros use for well lines, yard hydrants, and sprinkler systems.
Stop Leaks, Fitting Failures, and Cracked Fittings
choose Insert Fittings →Choose professional-grade insert fittings built to grip tight, hold pressure, and create secure connections in water well, irrigation, and hydrant applications.
Find the material, size, and fitting style that matches your system and get the connection right the first time.