
CD3608 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $8.65 | Condition is New, 1/4" M. Access Fitting with 1/8" Copper Tube C&D Valve CD3608 Sold Each, FREE SHIPPING | 100.0% |
![]() | $10.90 | Condition is New, (2-PACK) 1/4" M. Access Fitting with 1/8" Copper Tube C&D Valve CD3608, FREE SHIPPING | 100.0% |
![]() | $20.40 | Condition is New, 1/4" M. Access Fitting with 1/8" Copper Tube C&D Valve CD3608 Pack of (6), FREE SHIPPING | 100.0% |
![]() | $23.58 | Condition is New, C&D C&D-CD3608 1/2" NPT Brass Valve, FREE SHIPPING | ![]() |
![]() | $39.43 | Condition is New, C & D VALVE MFG CO CD3608 VALVE 6PK, FREE SHIPPING | 98.6% |

The Valve CD3608 1/4 Inch Access Fitting is a versatile plumbing component designed for use with 1/8 inch OD (Outside Diameter) copper tubing. This access fitting is an essential addition to any plumbing project, allowing for easy connection and modification of copper piping systems.
The CD3608 access fitting is engineered with a 1/4 inch NPT (National Pipe Thread) female threaded inlet and a 1/8 inch OD copper tube male threaded outlet. This configuration facilitates seamless integration into existing copper piping systems, making it an ideal choice for various applications such as water supply lines, radiant heating systems, and hydronic HVAC systems.
The body of the CD3608 access fitting is constructed from brass, providing superior durability and resistance to corrosion. Brass is a popular material choice for plumbing components due to its excellent strength, stability, and its ability to withstand the harsh conditions often found in water supply and heating applications.
The CD3608 access fitting features a unique design that enables it to act as a union, allowing for easy disassembly and reassembly without the need for soldering or the use of additional fittings. This time-saving feature is particularly valuable in situations where frequent access to piping systems is necessary, such as in commercial or industrial applications.
The surface finish of the CD3608 access fitting is smooth and even, ensuring a secure seal when connected to copper tubing. The threads are precision-machined to ensure a reliable and leak-free connection. Additionally, the fitting is compatible with both soft and hard solders, providing added flexibility for various installation methods.
In summary, the Valve CD3608 1/4 Inch Access Fitting with 1/8 inch OD copper tube connection is a high-quality, versatile plumbing component designed for use in a wide range of applications. Its robust brass construction, union design, and compatibility with various installation methods make it a valuable addition to any plumbing project.
The Valve CD3608 1/4 inch access fitting with a 1/8 inch copper tube connection is a common component used in plumbing and heating systems. Here are some pros and cons to consider before making a purchase.
Pros:1. Versatile: These fittings are widely used in various applications, such as radiator systems, hydronic heating, and water supply systems.
2. Durable: Copper tubing is a reliable and long-lasting material, and these fittings are designed to ensure a secure connection between the tubing and the valve.
3. Leak-free: The compression seal design of these fittings ensures a tight seal, reducing the risk of leaks.
4. Easy to install: These fittings are relatively easy to install, as they do not require soldering or brazing.
Cons:1. Cost: Copper tubing and fittings can be more expensive than other materials, such as PEX or CPVC.
2. Threading issues: These fittings require careful threading to ensure a secure connection. If not installed correctly, leaks can occur.
3. Compatibility: Ensure that the valve and fitting are compatible with the specific copper tube size and application.
4. Limited flexibility: Copper tubing is rigid, making it less flexible than other materials, such as PEX.
Conclusion:The Valve CD3608 1/4 inch access fitting with a 1/8 inch copper tube connection is a reliable and durable option for various plumbing and heating applications. However, it may be more expensive than other materials and requires careful installation to prevent leaks. Ultimately, the decision to purchase depends on the specific requirements of the project and the budget available.
Recommendation:If you are working on a plumbing or heating project that requires a secure and reliable connection, and you have the budget for it, then this Valve CD3608 1/4 inch access fitting with a 1/8 inch copper tube connection is a recommended option. However, if cost is a concern or flexibility is a priority, you may want to consider other materials, such as PEX or CPVC.
Details:
If you are unsure how to fix it. X, x, best offer / buy-it-now. Manufactured and packaged in USA. Air star is quickly becoming a leader in hvac indoor air quality solutions.
Calve product catalog. Products are unconditionally warranted against defective material and workmanship, will perform to complete satisfaction when used in accordance with our instructions. Calve # CD3608, premium access fitting / line service Valve, 1/4 m. 1/8 mot below hex.
Or you are looking for an item cannot find in one of our listings. High quality components manufactured in the USA calve mfg. Flare access with 1/8 copper tube extension. Image shown for illustration only, actual item may vary.
Can't find an item. Premium series comes with wrench cap and Valve core.
specifications maxohvac:
- brand: C-d Valve
- mpn: Cd3608
- part type: Tube
- country of origin: United States
returns maxohvac:
- policy: no returns
payments maxohvac:
- credit card: discover
- wallet: apple-pay
- other
offer maxohvac:
- prices: $8.65–$39.43
- item condition: New
- availability: in stock
- in stock #: 5
- started: march 24, 2026
- sold #: 7
- options: ship-to-home
shipping maxohvac:
- type: calculated
- transit: 3-8 days
- service: usps ground advantage, usps priority mail
- class: standard, expedited
- carrier: usps
general maxohvac:
- category: Business & Industrial > Hvac Refrigeration
seller maxohvac:
- rating: 100.0%
- city: boca raton, florida
- # reviews: 33132
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