Filter by
66 products
Sort by:
Starting at $23.00
Starting at $25.20
Starting at $23.00
Bronze (No Lead) Coupling – Durable, Lead-Free Fitting for Water Well and Plumbing Systems
SKU RBCPNL100
Starting at $9.50
Starting at $10.60
Starting at $13.80
Zinc Plated Steel Coupling Insert Fitting for Poly Pipe Connections – Heavy-Duty Water Well Adapter
SKU SCP50
Starting at $3.05
Starting at $5.65
Starting at $12.40
Starting at $3.10
Starting at $30.30
Starting at $7.70
Starting at $3.87
Bronze Union Adapter (No Lead) – Durable, Corrosion-Resistant Fitting for Water Systems
SKU BUANL100
Starting at $40.00
Stainless Steel Union with O-Ring – FIP to FIP Connector, Corrosion-Resistant, Durable Seal
SKU SSUN100
Starting at $30.00
Starting at $8.48
Starting at $6.00
Starting at $36.00
Starting at $13.30
Starting at $27.50
Stainless Steel Elbow – Corrosion-Resistant 90° Fitting for Flexible Poly Pipe insert x insert
SKU SSDE75
Starting at $19.80
Round Body Stainless Steel Male Adapter – Corrosion-Resistant Fitting for Water Well Systems
SKU SSRMA50
Starting at $9.10
Starting at $3.75
Starting at $6.25
MERRILL INSERT FITTINGS
Compare Insert Fittings
Compare materials and specialty fittings to find the right option for the job.
Choose by:
Material>
Durability>
Strength / Application>
Cost / Value
COMPARE MATERIALS
Find the Right Material
Choose up to 3 Materials
3 of 3 selected
Choose materials above, then scroll horizontally to compare.
| Compare | |||||||
|---|---|---|---|---|---|---|---|
| Why Choose It? | Durable, long-lasting material for demanding applications. | Highest corrosion resistance for the longest service life. | Reliable performance at a lower cost. | Rugged and dependable for rough-duty use. | Strong, lightweight plastic resistant to many chemicals. | Common plastic with good corrosion resistance. | Most economical option for basic needs. |
| Best For? | Potable water systems and long-term installations. | Corrosive water conditions and maximum durability. | General-purpose use where cost is a factor. | Rough-duty and non-potable applications. | Cold water systems and light-duty applications. | General plumbing and irrigation systems. | Low-pressure and non-potable applications. |
| What You Get | No-lead bronze insert fitting with quality construction. | Stainless steel insert fitting built for harsh environments. | No-lead brass insert fitting for reliable performance. | Galvanized steel insert fitting with rugged construction. | Nylon insert fitting with strong plastic design. | PVC insert fitting for common applications. | Poly insert fitting for economical installations. |
| Durability / Corrosion Resistance | Excellent corrosion resistance and long service life. | Maximum corrosion resistance for harsh water conditions. | Good corrosion resistance in most water conditions. | Good durability; zinc coating helps resist corrosion. | Good corrosion resistance in many environments. | Good corrosion resistance for general use. | Good corrosion resistance for basic applications. |
| Strength / Application | High strength for underground burial and demanding applications. | High strength and durability in extreme conditions. | Good strength for general-purpose use. | Strong and rugged for rough-duty applications. | Strong plastic for light- to medium-duty use. | Moderate strength for general applications. | Adequate strength for low-pressure applications. |
| Cost / Value | Higher initial cost with long-term value. | Higher initial cost with maximum durability. | Good balance of performance and value. | Economical option for rough-duty use. | Cost-effective plastic option. | Economical and widely used. | Lowest cost option. |
| Available Fitting Types | Male adapters, couplings, elbows, tees, and female adapters. | Male adapters, couplings, elbows, tees, and female adapters. | Male adapters, couplings, elbows, tees, and female adapters. | Male adapters, couplings, elbows, tees, and female adapters. | Male adapters, couplings, elbows, tees, and female adapters. | Male adapters, couplings, elbows, tees, and female adapters. | Male adapters, couplings, elbows, tees, and female adapters. |
| Sizes / Connections | Multiple sizes and connection types available. | Multiple sizes and connection types available. | Multiple sizes and connection types available. | Multiple sizes and connection types available. | Multiple sizes and connection types available. | Multiple sizes and connection types available. | Multiple sizes and connection types available. |
SPECIALTY INSERT FITTINGS
Compare Applications
Choose up to 3 Applications
3 of 3 selected
Choose applications above, then scroll horizontally to compare.
| Compare | |||||
|---|---|---|---|---|---|
| Why Choose It? | Makes it easy to connect a yard hydrant directly to a water line. | Make pipe breaks and leaks an easy fix. | Allows quick and easy disconnection for service or replacement. | Provides a secure connection point for pump safety rope. | Designed for geothermal and ground-source piping applications. |
| Best For? | Yard hydrant installations. | Pipe breaks and leaks. | Systems where future disconnection may be needed. | Submersible pump installations. | Geothermal and ground-source systems. |
| What You Get | Tee fitting with insert connections for yard hydrant installation. | Used with O-ring in middle of insert coupling. | Union fitting for easy disconnect. | Adapter with threaded connection for pump rope. | Insert fitting designed for geothermal applications. |






























