Best Compression Cap Fittings in 2026
Daisy
Last Updated: Feb 8, 2026
Daisy
Last Updated: Feb 8, 2026
* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| honest-f | 9.84 | ✅ | ✅ | ✅ |
Type: Compression Cap
Tube Size:3/8" OD
Materies: BRASS
Net Weight: 8g/PC
Choosing products dimensions and quantities at column of size and colour seperately,price would be more favorable if choosing wholesale.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| honest-f | 9.84 | ✅ | ✅ | ✅ |
Type: Compression Cap
Tube Size:5/16" OD
Materies: BRASS
Net Weight: 7g/PC
Choosing products dimensions and quantities at column of size and colour seperately,price would be more favorable if choosing wholesale.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| honest-f | 9.84 | ✅ | ✅ | ✅ |
Type: Compression Cap
Tube Size:1/4" OD
Materies: BRASS
Net Weight: 6g/PC
Choosing products dimensions and quantities at column of size and colour seperately,price would be more favorable if choosing wholesale.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| TAILONZ PNEUMATIC | 9.88 | ✅ | ✅ | ✅ |
【Product Name】Straight Push to Connect Fittings Air Fittings
【Material】Copper and Plastic
【Size】1/4" Tube OD x 1/4" Female NPT Thread,Notice - NPT Thread Size is a Nominal Pipe Size, and it Does Not represent the actual diameter
【Maximum Pressure】0~145Psi【Working Temperature】32～140°F
【Features】Control pipeline connection or disconnection.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Two piece construction - nut and body
Use with brass tubing
Standard fittings use short nuts
Resists mechanical pullout
Easy to disassemble and can be reassembled many times with no effect on the seal
These fittings contain lead and are not allowed by federal law to be installed for potable water use in the U.S.A. and its territories.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Fluid Power Products | 9.58 | ❌ | ❌ | ❌ |
Cap for closing the end of a tube or fitting
Connects to tubing
Chemically hardened type 316 stainless steel for higher strength and greater corrosion resistance than untreated stainless steel
Twin ferrule compression fitting for a leak-resistant seal in high-pressure applications
For use with stainless steel tubing
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| American Buyer Group | 6.12 | ✅ | ✅ | ✅ |
COMPRESSION CAP FITTING: Made of lead-free brass and can be disassembled and reassembled repeatedly. Suitable for indoor air application and are made for low to mid pressure applications. Can be used with thin-wall tubing in refrigeration equipment, air compressors, and machinery It closes and blanks off unused pipe. Put at the end of the tube.
THREADED CONNECTION has threaded tube connections that can be screwed close off end of tube. Use with copper, brass, aluminum or plastic tubing on gasoline, grease, oil, or water
MADE OF BRASS for corrosion resistance, ductility at high temperatures & low magnetic permeability. provide strong, tight, and reliable seals for any of your water treatment configurations
INTENDED USE: Use with copper, brass, aluminum or plastic tubing on gasoline, grease, oil or water. Works with washing machines, air conditioners, water heaters, storage rooms and more. Not for use with steel pipe
CRAFTED BY THE EXPERTS: Committed to providing an outstanding customer experience every single time
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| uxcell | 9.95 | ✅ | ✅ | ✅ |
Fit Tube OD and Thread Size: 6mm x 1/4" G; Operating Pressure: 0-0.9MPa; Operating temperature: 0 - 60 Degree Celsius
Push to connect fitting can realize the pipeline together or disconnected without tools, mainly used for air compression systems, vacuum systems, pneumatic systems, 3D printers.
Push-to-connect tube connection on one end and male threads on the other end. A good release cap can withstand greater and stronger pressure without tripping. Even after installation, the release cap can be rotated 360 degrees.
Have abrasion resistance, light weight, and resistance to crushing and cracking, compressive and corrosion resistant, good sealing performance and long service life.
Designed for using to connect with polyethylene, nylon and PU tubing. Quick and simple installation. Threads are pre-coated with PTFE for good sealing performance.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| RuiLing | 9.83 | ✅ | ✅ | ✅ |
Used with brass, copper, iron pipes (3/8" outside diameter), used to close male pipes or pipe joint ends.
Used for the connection of fuel, petroleum, air, propane, liquefied petroleum gas (LP) and natural gas pipelines.
The flare fitting at the end of the copper pipe should be firmly fixed to the fixed point by a threaded joint.
Temperature range: -65 to 250 degrees Fahrenheit; 1000 PSI maximum pressure.
Material: Brass.Packing Quantity: 2PCS.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| PSI Supply | 6.18 | ❌ | ❌ | ❌ |
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| ZLYY | 8.61 | ✅ | ✅ | ✅ |
Product Name: Brass Pipe Fitting ; Thread Type: G1/2"
Overall size :23mm/0.9"; Total Height : 11mm/0.43"
Material: Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability.; Surface Treatment: Passivation
Package Content : 5pcs x Brass Cap.
Countersunk plug with a round drive for closing the end of a pipe or fitting ;Female G threads for connecting to male threaded pipes.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| uxcell | 9.95 | ✅ | ✅ | ✅ |
[1] : Product Name: Brass Pipe Fitting ; Thread Type: G1/4"; Hex Width :15mm/0.59"; Total Height : 11mm/0.43".
[2] : Material: Brass; Surface Treatment: Passivation; Package Content : pcs x Brass Cap.
[3] : Countersunk plug with a round drive for closing the end of a pipe or fitting ;Female G threads for connecting to male threaded pipes.
[4] : Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability.
[5] : Pipe fittings are components used for connecting, terminating, controlling flow, and changing the direction of piping in many different industries.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| uxcell | 9.95 | ✅ | ✅ | ✅ |
[1] : Product Name: Brass Pipe Fitting ; Thread Type: G1/4; Hex Width :15mm/0.59"; Total Height : 10mm/0.39".
[2] : Material: Brass; Surface Treatment: Passivation; Package Content : 5pcs x Brass Cap.
[3] : Countersunk plug with a round drive for closing the end of a pipe or fitting; Female G threads for connecting to male threaded pipes.
[4] : Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability.
[5] : Pipe fittings are components used for connecting, terminating, controlling flow, and changing the direction of piping in many different industries.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| honest-f | 9.84 | ✅ | ✅ | ✅ |
Type: Compression Cap
Tube Size:3/8" OD
Materies: BRASS
Net Weight: 8g/PC
Choosing products dimensions and quantities at column of size and colour seperately,price would be more favorable if choosing wholesale.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| honest-f | 9.84 | ✅ | ✅ | ✅ |
Type: Compression Cap
Tube Size:1/2" OD
Materies: BRASS
Net Weight: 14g/PC
Choosing products dimensions and quantities at column of size and colour seperately,price would be more favorable if choosing wholesale.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| uxcell | 9.95 | ✅ | ✅ | ✅ |
[1] : Product Name: Brass Pipe Fitting ; Thread Type: PT1/4; Hex Width :15mm/0.59"; Total Height : 10mm/0.39".
[2] : Material: Brass; Surface Treatment: Passivation; Package Content : pcs x Brass Cap.
[3] : Countersunk plug with a round drive for closing the end of a pipe or fitting ;Female PT threads for connecting to male threaded pipes.
[4] : Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability.
[5] : Pipe fittings are components used for connecting, terminating, controlling flow, and changing the direction of piping in many different industries.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| uxcell | 9.95 | ✅ | ✅ | ✅ |
[1] : Product Name: Brass Pipe Fitting ; Thread Type: PT1/8"; Hex Width :11mm/0.43"; Total Height : 11mm/0.43".
[2] : Material: Brass; Surface Treatment: Passivation; Package Content : 10pcs x Brass Cap.
[3] : Countersunk plug with a round drive for closing the end of a pipe or fitting ;Female PT threads for connecting to male threaded pipes.
[4] : Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability.
[5] : Pipe fittings are components used for connecting, terminating, controlling flow, and changing the direction of piping in many different industries.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Hardware Factory Store | 9.78 | ❌ | ❌ | ❌ |
[Size]: Fit 1/2" OD Tube. Thread: 3/4"x 20unef-2A, Dimensions: 22.23mm.
[Quality Materials]: The PLUG is made of high quality 316 stainless steel, which is durable, stable, rust and corrosive resistance and good for long time using.
[Precise Design]: The Plug's shape is designed as hexagon.
[High Working Temp. & Wide Range of Applications]: It can be used to closing the end of a pipe or fitting. It is suitable for different media including water, gas, and oil with working at -67°F~428°F.
[Convenient organization and storage]: Packed in a small plastic bag with label.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| TAILONZ PNEUMATIC | 9.88 | ✅ | ✅ | ✅ |
【Product Name】 Straight Push to Connect Fittings Air Fittings
【Material】Copper and Plastic
【Size】1/4" Tube OD x 1/4" Female NPT Thread,Notice - NPT Thread Size is a Nominal Pipe Size, and it Does Not represent the actual diameter
【Maximum Pressure】0~145Psi【Working Temperature】32～140°F
【Features】Control pipeline connection or disconnection.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| TAILONZ PNEUMATIC | 9.88 | ✅ | ✅ | ✅ |
【Product Name】 Straight Push to Connect Fittings Air Fittings
【Material】Copper and Plastic
【Size】1/4" Tube OD x 3/8" Female NPT Thread，Notice - NPT Thread Size is a Nominal Pipe Size, and it Does Not represent the actual diameter
【Maximum Pressure】0~145Psi【Working Temperature】32～140°F
【Features】Control pipeline connection or disconnection.
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Ltwfitting | 5 |
| Uxcell | 5 |
| Tailonz Pneumatic | 3 |
| Anderson Metals | 1 |
| Hfs | 1 |
| Ironwerks Designs | 1 |
| Parker | 1 |
| Rlecs | 1 |
| Thrifco Plumbing | 1 |
| Zlyy | 1 |
We've carried out a comprehensive analysis of 2,253 reviews on compression cap fittings, using our selection criteria to identify the best options in the categories. Our findings reveal that most customers typically select compression cap fittings priced around $23.58, with top brands including and anderson metals
Our team of expert editors reviewed these high-quality items and handpicked the top 20 compression cap fittings for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the categories category. These include and amazon.com .
We are dedicated to assisting our users in finding the right fittings Products based on their needs, saving them considerable time when choosing which compression cap fittings to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.
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