
CD5421 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $9.10 | Condition is New, C&D Valve CD5421 Copper Access Tee, FREE SHIPPING | 100.0% |
![]() | $12.20 | Condition is New, C&D Valve CD5421 Copper Access Tee Pack of (2), FREE SHIPPING | 100.0% |
![]() | $45.41 | Top Pick! Condition is New, C&D Valve Access Tee 1/4" Male Flare Fitting 5/16" OD Copper Tube, FREE SHIPPING | ![]() |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $16.19 | Condition is New – Open box, C&D B10-745 Copper Tee Line Valve B10745 CD5421 Lot of 2 New (TBI), FREE SHIPPING | ![]() |

Introducing the Valve CD5421 1/4 Flare Copper Access Tee, a versatile and reliable solution for your plumbing or piping system needs. This component is specifically designed as a tee fitting with a 1/4 inch flare connection for 5/16 inch OD (Outside Diameter) copper tubing.
The Valve CD5421 is engineered with precision and care, ensuring a secure and leak-free connection. Made of high-quality copper material, it offers excellent corrosion resistance and durability for long-term use. The 1/4 inch flare connection provides a robust seal, making it suitable for applications with high pressure and temperature requirements.
One of the distinct features of this tee fitting is its ability to accommodate copper tubing with an Outside Diameter of 5/16 inches. This makes it a versatile option for various piping systems and applications. The 5/16 inch OD size is a common dimension used in residential, commercial, and industrial piping, making this tee fitting a valuable addition to any plumbing inventory.
The Valve CD5421 is meticulously crafted to ensure a proper flow path for fluids or gases. Its tee design allows for the branch connection to be made at a 90-degree angle, providing optimal space for branch piping and minimizing flow restriction. The tee also features smooth internal and external surfaces, ensuring a consistent and efficient flow rate.
In summary, the Valve CD5421 1/4 Flare Copper Access Tee is a top-quality, reliable, and versatile component designed for use with 5/16 inch OD copper tubing. Its robust construction, leak-free connection, and efficient flow design make it an essential addition to any plumbing or piping system. With its high-quality materials, precise engineering, and versatile application possibilities, this tee fitting is an excellent investment for plumbing professionals and DIY enthusiasts alike.
The Valve CD5421 1/4 inch flare copper access tee with a 5/16 inch OD tube is a plumbing component used to connect copper tubing to various piping systems. Here are some pros and cons of buying this specific product:
Pros:1. High-quality material: This tee is made of copper, which is a durable and corrosion-resistant material suitable for use in various plumbing applications.
2. Leak-free connection: The 1/4 inch flare connection ensures a secure and leak-free connection between the tee and the copper tubing or piping.
3. Versatile: This tee can be used in various plumbing applications, including potable water, heating, and venting systems.
4. Easy to install: The tee is relatively easy to install, as it requires only a few tools and simple steps to make a secure connection.
Cons:1. Cost: Copper is an expensive material compared to other options like PVC or CPVC, which could make this tee more costly than other alternatives.
2. Requires specific tools: To install this tee, you will need a flare nut wrench, a pipe cutter, and a soldering torch and flux if you plan to solder the connection.
3. Soldering required: While the flare connection provides a leak-free connection, soldering the connection can add additional time and cost to the installation process.
In conclusion, the Valve CD5421 1/4 inch flare copper access tee with a 5/16 inch OD tube is a high-quality plumbing component with a secure connection and versatile applications. However, it may be more expensive than alternative materials and requires specific tools and soldering for installation. Ultimately, the decision to buy this tee depends on the specific plumbing application, budget, and personal preferences.
If you are working with copper piping and require a secure connection, this tee is an excellent option. However, if you are looking for a more cost-effective alternative, consider exploring other materials like PVC or CPVC. If you have the necessary tools and experience to make a soldered connection, this tee is a great choice. Otherwise, you may want to consider a push-fit or compression connection alternative.
Details:
Air star is quickly becoming a leader in hvac indoor air quality solutions. Products are unconditionally warranted against defective material and workmanship, will perform to complete satisfaction when used in accordance with our instructions. Calve # CD5421, copper access tee, sold each. If you are unsure how to fix it.
Copper tees are preferable where two line ends have not yet been attached or it is desirable to cut a rather than drive hole on an uncharged system. Tee with 1/4 m. Can't find an item. Using copper tees allows connections at each end and use of solder less than silver such as 95-5.
Image shown for illustration only, actual item may vary. Or you are looking for an item cannot find in one of our listings. High quality components manufactured in the USA calve mfg. The 84ts series offers two styles of copper access tees in tubing sizes 1/4 to 1-1/8.
X, x, best offer / buy-it-now.
specifications maxohvac:
- brand: C-d Valve
- mpn: Cd5421
- part type: Tee Tube
- country of origin: United States
seller maxohvac:
- # reviews: 32347
- rating: 99.9%
- city: boca raton, florida
shipping maxohvac:
- transit: 3-9 days
- type: calculated
- service: usps ground advantage, usps priority mail
- class: standard, expedited
- carrier: usps
payments maxohvac:
- credit card: diners-club
- wallet: google-pay
- other
general maxohvac:
- category: Business & Industrial > Hvac Refrigeration
offer maxohvac:
- availability: in stock
- in stock #: 4
- prices: $9.10–$45.41
- item condition:
- New
- New – Open box
- sold #: 10
- options: ship-to-home
- started: december 17, 2025
returns maxohvac:
- policy: no returns
Also Viewed:
- CD8414-2PK: VALVE TEE, C D Valve
- CD2215: STRAP VALVE CAP, C D Valve
- 682248112662: VALVE TEE CONNECTOR, C D Valve
- H25-597: TOOL VALVE, C D
- CD3910: TOOL VALVE, C D Valve
- B10-740-CD4460-21: AIR VALVE, C D Valve
- CD3970: VALVE KIT, C D Valve
- CD3930: TOOL VALVE BALL, C D Valve
- CD9603: VALVE, C D Valve
- CD9601: VALVE TEE, C D Valve
- CD3604: VALVE TUBE, C D Valve



