Need the best 3/8 inch SAE caps for your projects? We offer a selection of 10 reliable brass fittings, including male, female, or combo packs from trusted brands, designed for high-pressure systems and easy installation.
Looking for reliable 3/8 SAE flare caps? These brass fittings are built for high-pressure systems and lasting performance.
They work with gas, hydraulic, and refrigeration lines. Corrosion-resistant brass ensures durability. Easy installation means secure, leak-proof seals every time.
Need options? Choose from male, female, or combo packs. Trusted brands like Legines, Hooshing, and Uenede deliver quality. Teflon tape or gaskets boost reliability—your projects stay safe and strong.
List of Top 10 3/8 Inch SAE Caps
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Legines 3/8″ Flare Cap, Brass SAE 45 Degree Flare Tube Fitting, Pack of 2 |
This product is perfect for professionals and DIYers working with gas lines or high-pressure systems. It creates reliable, secure connections for fuel, propane, or air pipes. Not for potable water due to lead content. |
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Hooshing 2PCS 3/8″ Flare Cap, Brass SAE 45 Degree Female Flare Tube Fitting Seal Plug |
This Hooshing 2PCS 3/8″ Flare Cap is perfect for anyone working with gas, refrigeration, or hydraulic systems. It’s ideal for professionals and DIYers who need reliable, reusable fittings for copper, brass, aluminum, or steel tubing. |
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Uenede 4PCS Brass 3/8 Flare Female Cap, 3/8″ Tube OD SAE 45 Degree Plug Gas Adapter Pipe Fitting |
Perfect for DIY enthusiasts and professionals, these brass flare female caps are ideal for anyone working with plumbing, gas, or hydraulic systems. Whether you’re fixing a leak or setting up a new system, these durable and easy-to-use fittings will get the job done. |
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Joywayus Brass 3/8″ Female Flare Cap SAE 45 Degree Tube Fitting Outer Hex Thread Socket Plug Gas Fittings (Pack of 5) |
This Joywayus Brass 3/8″ Female Flare Cap is perfect for anyone working with fuel, gas, or refrigeration systems. It’s ideal for DIYers, plumbers, or professionals needing reliable, durable fittings. |
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Flare Cap, 3/8″ Inch Brass Cap SAE for 45 Degree Female Flare Tube Fitting Seal Plug – 5 Pcs |
The Flare Cap is perfect for anyone working with fuel, gas, or water lines. It’s great for homeowners, plumbers, and maintenance workers who need a strong, reliable seal. If you want to stop leaks fast and keep your connections safe, this is the cap for you. |
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JB Industries 3/8″ SAE Cap w/Gasket, PK3 – pkg. of 3 |
This JB Industries 3/8″ SAE Cap w/Gasket is perfect for anyone who needs a reliable, easy-to-use sealing solution for their air conditioning or refrigeration systems. It’s great for technicians, DIYers, and maintenance pros who want to keep their equipment safe from leaks and dirt. The package of three means you’re ready for multiple jobs or backups without hassle. |
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Dazakoot 20pcs Brass 3/8” Flare Cap & Plug Assortment Kit, 10pcs 3/8” Female Cap and 10pcs 3/8” Plug Tube Fitting, SAE 45 Degree Flare Fitting for Refrigeration Pipe HVAC Valve Adapter/Gas |
This Dazakoot Brass Flare Cap & Plug Kit is perfect for anyone working with refrigeration, HVAC, or gas systems. It’s ideal for professionals and DIYers who need reliable, leak-proof fittings for pipes and valves. |
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Uenede 4PCS Brass 3/8 Flare Male Plug, 3/8″ Tube OD SAE 45 Degree Cap Gas Adapter Pipe Fitting |
This Uenede 4PCS Brass 3/8 Flare Male Plug is perfect for anyone working on plumbing, gas systems, or refrigeration. It’s great for DIYers and professionals who need reliable, durable fittings. |
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PATIKIL 3/8″ Plastic Flare Cap, 5/8-18UNF Female Thread 5Pcs 45 Degree SAE Flare Tube Fitting Valve Cap Plug Stop for Air Conditioner Pipe Gas Line Hydraulic, Black |
This product is perfect for anyone who works with air conditioners, gas lines, or hydraulic systems. It’s great for those who need to protect pipe ends from dust and damage. If you want a strong, easy-to-use cap that fits 3/8″ tubes, this is the right choice. |
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Legines Brass Flared Plug 3/8″ Tube OD, SAE 45 Degree Flare Tube Fitting（Pack of 2） |
This Legines Brass Flared Plug is perfect for anyone working with LP and natural gas, refrigeration, or hydraulic systems. Its brass construction ensures durability and resistance to corrosion, making it a reliable choice for various tubing applications. |
Detailed Reviews
Discover the Best 3/8 Inch SAE Caps with our expert-picked guide. Each cap is chosen for its strong performance and easy installation. We focus on quality and value to help you make the right choice. Dive in to find the perfect fit for your project today.
1. Legines 3/8″ Flare Cap, Brass SAE 45 Degree Flare Tube Fitting, Pack of 2
The Legines 3/8″ Flare Cap is a brass fitting designed to terminate or close pipe ends. It’s perfect for high-pressure systems like water or gas lines.
Use it for fuel, oil, air, propane, or natural gas connections. Remember, it’s not for potable water due to lead content.
Strong connections are key with flare fittings. Easy to install and reliable for your projects.
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Perfect For:
This product is perfect for professionals and DIYers working with gas lines or high-pressure systems. It creates reliable, secure connections for fuel, propane, or air pipes. Not for potable water due to lead content.
Ready to Purchase?
2. Hooshing 2PCS 3/8″ Flare Cap, Brass SAE 45 Degree Female Flare Tube Fitting Seal Plug
The Hooshing 2PCS 3/8″ Flare Cap is a brass SAE 45-degree female flare tube fitting seal plug. It fits tubes with a 3/8 inch size and has a 0.56 inch inside diameter.
This product works with LP and natural gas, refrigeration, and hydraulic systems. It fits copper, brass, aluminum, and steel tubing. The brass material resists corrosion and stays strong in heat.
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Perfect For:
This Hooshing 2PCS 3/8″ Flare Cap is perfect for anyone working with gas, refrigeration, or hydraulic systems. It’s ideal for professionals and DIYers who need reliable, reusable fittings for copper, brass, aluminum, or steel tubing.
Ready to Purchase?
3. Uenede 4PCS Brass 3/8 Flare Female Cap, 3/8″ Tube OD SAE 45 Degree Plug Gas Adapter Pipe Fitting
The Uenede 4PCS Brass 3/8 Flare Female Cap includes 4PCS brass caps for pipes. They fit 3/8″ tube OD systems and work with SAE 45-degree connections.
Hex design makes tightening easy. A solid connection seals pipe ends securely. These caps suit plumbing, gas, and hydraulic systems.
Solid brass resists corrosion. Deep threads ensure tight fits. They handle high temperatures without warping.
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Perfect For:
Perfect for DIY enthusiasts and professionals, these brass flare female caps are ideal for anyone working with plumbing, gas, or hydraulic systems. Whether you’re fixing a leak or setting up a new system, these durable and easy-to-use fittings will get the job done.
Ready to Purchase?
4. Joywayus Brass 3/8″ Female Flare Cap SAE 45 Degree Tube Fitting Outer Hex Thread Socket Plug Gas Fittings (Pack of 5)
Joywayus Brass Fittings are a pack of 5 durable caps. They are made of heavy-duty brass, ensuring long-lasting use. These 3/8″ female flare caps are a reliable choice.
The flare thread design allows for easy assembly and disassembly. No special tools are needed, making it a convenient option. Teflon tape is recommended for a secure seal.
Suitable for a wide temperature range, these fittings are versatile. Use them for fuel, gas, plumbing, and more. A great addition to any project.
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Perfect For:
This Joywayus Brass 3/8″ Female Flare Cap is perfect for anyone working with fuel, gas, or refrigeration systems. It’s ideal for DIYers, plumbers, or professionals needing reliable, durable fittings.
Ready to Purchase?
5. Flare Cap, 3/8″ Inch Brass Cap SAE for 45 Degree Female Flare Tube Fitting Seal Plug – 5 Pcs
Flare Cap is a must-have for secure connections. These brass nuts are designed to terminate flared fittings, making them essential for high-pressure applications. They work great with fuel, oil, air, and gas lines.
Durable brass ensures longevity and reliable performance. Pair them with washers for easy installation and hassle-free maintenance.
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Perfect For:
The Flare Cap is perfect for anyone working with fuel, gas, or water lines. It’s great for homeowners, plumbers, and maintenance workers who need a strong, reliable seal. If you want to stop leaks fast and keep your connections safe, this is the cap for you.
Ready to Purchase?
6. JB Industries 3/8″ SAE Cap w/Gasket, PK3 – pkg. of 3
JB Industries offers a 3/8″ SAE Cap with a gasket, sold in a pack of 3. This product is gold in color and made by a trusted brand. It’s a small but useful item for your needs.
The caps are lightweight, weighing just 0.000625 pounds each. They come with a gasket for a secure fit. The 3/8 inch size makes them easy to use.
This pack of 3 is ideal for quick replacements. The model NFT5-6 ensures quality and reliability.
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Perfect For:
This JB Industries 3/8″ SAE Cap w/Gasket is perfect for anyone who needs a reliable, easy-to-use sealing solution for their air conditioning or refrigeration systems. It’s great for technicians, DIYers, and maintenance pros who want to keep their equipment safe from leaks and dirt. The package of three means you’re ready for multiple jobs or backups without hassle.
Ready to Purchase?
7. Dazakoot 20pcs Brass 3/8” Flare Cap & Plug Assortment Kit, 10pcs 3/8” Female Cap and 10pcs 3/8” Plug Tube Fitting, SAE 45 Degree Flare Fitting for Refrigeration Pipe HVAC Valve Adapter/Gas
The Dazakoot 20pcs Brass Flare Cap & Plug Kit is made from solid brass. It is strong and will not rust. The threads are smooth for a tight fit.
This kit has a leak-proof metal-to-metal seal. It uses a 45-degree flare that fits many systems. You don’t need extra seals or gaskets.
It works well with natural gas, LPG, and refrigeration pipes. The fittings fit many pipe types like copper and steel. This kit makes connections easy and reliable.
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Perfect For:
This Dazakoot Brass Flare Cap & Plug Kit is perfect for anyone working with refrigeration, HVAC, or gas systems. It’s ideal for professionals and DIYers who need reliable, leak-proof fittings for pipes and valves.
Ready to Purchase?
8. Uenede 4PCS Brass 3/8 Flare Male Plug, 3/8″ Tube OD SAE 45 Degree Cap Gas Adapter Pipe Fitting
Uenede 4PCS Brass 3/8 Flare Male Plugs are sturdy fittings for sealing pipes. Each pack includes 4 solid brass plugs built to last in tough conditions.
Solid brass makes them thicker, stronger, and corrosion-resistant. The flare design ensures tight, leak-proof connections. Hex edges allow easy tightening with a wrench.
These plugs work for plumbing, gas, or hydraulic systems. Their 3/8″ size fits standard tubes, offering a reliable, high-temp seal.
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Perfect For:
This Uenede 4PCS Brass 3/8 Flare Male Plug is perfect for anyone working on plumbing, gas systems, or refrigeration. It’s great for DIYers and professionals who need reliable, durable fittings.
Ready to Purchase?
9. PATIKIL 3/8″ Plastic Flare Cap, 5/8-18UNF Female Thread 5Pcs 45 Degree SAE Flare Tube Fitting Valve Cap Plug Stop for Air Conditioner Pipe Gas Line Hydraulic, Black
Protect your pipes with these black plastic flare caps. They fit a 3/8″ tube and have a 5/8-18UNF female thread. Keep your air conditioner pipes clean and safe.
These caps are strong and durable, resisting rust for long-lasting use. They are easy to install and replace.
Simply clean the pipe threads and screw on the cap. They are perfect for air conditioners, water heaters, and garden pipes.
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Perfect For:
This product is perfect for anyone who works with air conditioners, gas lines, or hydraulic systems. It’s great for those who need to protect pipe ends from dust and damage. If you want a strong, easy-to-use cap that fits 3/8″ tubes, this is the right choice.
Ready to Purchase?
10. Legines Brass Flared Plug 3/8″ Tube OD, SAE 45 Degree Flare Tube Fitting（Pack of 2）
Legines Brass Flared Plugs are durable and reliable. They come in a pack of two for your convenience. These plugs are easy to use and long-lasting.
Made from high-quality brass, they resist corrosion and handle high temperatures. Use them with LP gas, natural gas, refrigeration, and hydraulic systems. They work well with copper, brass, aluminum, and steel tubing.
These plugs are low-cost and reusable. They offer good resistance to vibration. A great choice for your fitting needs.
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Perfect For:
This Legines Brass Flared Plug is perfect for anyone working with LP and natural gas, refrigeration, or hydraulic systems. Its brass construction ensures durability and resistance to corrosion, making it a reliable choice for various tubing applications.
Ready to Purchase?
Buying Guide
Looking for the best 3/8 inch SAE caps? These fittings are essential for secure connections in high-pressure systems.
When buying 3/8 inch SAE caps, consider the following factors:
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Material: Choose brass for durability and corrosion resistance. Brass fittings are ideal for high-pressure applications and can withstand various temperatures.
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Type: Decide between male, female, or combo packs based on your project needs. Each type serves a specific purpose, ensuring a proper fit for your pipes.
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Compatibility: Ensure the caps work with your specific systems, such as gas, hydraulic, or refrigeration lines. Compatibility is key to preventing leaks and ensuring safety.
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Ease of Installation: Look for caps that are easy to install. Features like hex designs or included gaskets can simplify the process and enhance reliability.
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Brand Reputation: Opt for trusted brands like Legines, Hooshing, and Uenede. Quality brands often provide better performance and customer support.
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Pack Size: Consider how many caps you need. Buying in bulk can save money and ensure you have extras for future projects.
By keeping these factors in mind, you can make an informed decision and choose the best 3/8 inch SAE caps for your needs!