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With over 200 different sizes and model combinations FasParts is your premier source for all things compression. Our fittings are rated for use with copper tubing, aluminium tubing and more. Every tube end comes pre-loaded with sealing copper ferrule (olive). These fittings are commonly used in plumbing, air compressors, pumps, heating and cooling applications. We carry compression to compression as well as cross over Npt to compression fittings. Click on the pictures to shop the different sizes we offer on each model.

Compression to Male NPT Adapter

Compression Tube 
Male NPT Adapter

Compression Tube Male NPT Straight Adapter
COMP68-Series
Available in Npt pipe sizes from 1/8" up to 1"
Tube sizes from 1/8" to 7/8"

Female NPT to Compression Tube Adapter Fittings

Compression Tube
Female NPT Adapter

Compression Tube Female NPT Straight Adapter
COMP66-Series

Available in Npt pipe sizes from 1/8" up to 1"
Tube sizes from 1/8" to 7/8"

Brass Compression Tube Union Fittings

Compression Tube
Union Fittings

Compression Tube Straight Union Coupling
COMP62-Series

Tube sizes from 1/8" to 7/8"
Equal and reducer sizes available.

Brass Compression Tube Bulkhead Union Fittings

Compression Tube
Bulkhead Fittings

Compression Tube Straight Union Bulkhead
COMP77-Series

Tube sizes from 1/4" to 3/8"  

90 Degree Elbow Compression Tube to Male NPT Fittings
Compression Tube
Male NPT Elbows

Compression Tube Male NPT Elbow L Adapter
COMP69-Series

Available in Npt pipe sizes from 1/8" up to 1"

Tube sizes from 1/8" to 7/8"  

90 Degree Female NPT to Compression Tube Elbow Fittings
Compression Tube
Female NPT Elbows

Compression Tube Female NPT Elbow L Adapter
COMP70-Series

Available in Npt pipe sizes from 1/8" up to 3/4"

Tube sizes from 1/8" to 7/8" 

45 Degree Male NPT to Compression Tube Elbow Fittings
Compression Tube
Male NPT 45 Elbows

Compression Tube Male NPT 45 Degree Elbow Adapter
COMP74-Series

Available in Npt pipe sizes from 1/8" up to 3/4"

Tube sizes from 1/8" to 7/8" 

Brass Compression Tube 90 Degree Elbow Fittings
Compression Tube
90 Degree Elbows

Compression Tube Elbow L Union Coupling
COMP65-Series

Tube sizes from 1/8" to 7/8"  

Equal and reducer sizes available.

Three Way Compression Tube Tee Union Fittings
Three Way Tee
Compression Tube

Compression Tube Elbow T Tee Union
COMP64-Series

Tube sizes from 1/8" to 7/8" 

Equal and reducer sizes available.

Male NPT Run to Compression Tube Tee Fittings
Male NPT Run Tee
Compression Tube

 

Male Npt Run Compression Tube Tee
COMP71-Series

Available in Npt pipe sizes from 1/8" up to 3/4"

Tube sizes from 1/8" to 7/8" 

Female NPT Branch to Compression Tube Tee Fittings
Female NPT Branch 
Compression Tube T
Female Npt Branch Compression Tube Tee
COMP78-Series

Available in Npt pipe sizes from 1/8" up to 3/4"

Tube sizes from 1/8" to 7/8" 

Compression Tube Run to Male and Female NPT Tee Fittings
Street Tee Npt to
Compresson Tube

Npt to Compression Tube Street Tee
COMP79

Compression Copper Tube to Male Tee Branch
Male NPT Branch Tee
Compression Tube

Male Npt to Compression Tube Branch Tee
COMP72-Series

Available in Npt pipe sizes from 1/8" up to 3/4"

Tube sizes from 1/8" to 7/8" 

Brass Compression Tube Nut Fittings
Compression Tube
Nut Fittings

Compression Tube Nut
COMP61-Series

Tube sizes from 1/8" to 7/8" 

Compression Tube Sealing Plug Kit with Nut and Sleeve

Compression Tube
Sealing Nut Kit 

Compression Tube Plug
COMP67-Series
Available in 1/4"

Compression Tube Copper Ring Sleeve Seal Fittings
Compression Ring
Seal Sleeves

Compression Tube Olive/Ferrule
COMP60-Series

Tube sizes from 1/8" to 7/8"