Compression Fittings

What are compression fittings?
Suitable for use in both commercial and residential applications, brass and copper compression fittings are an easy and practical plumbing method for both DIY and professional plumbers. Available in a variety of standard sizes each in different profiles such as straight connectors, 90-degree elbow, equal tee as well as reducing fittings from one size to another. Connecting copper pipe is easy with the range of fittings available with minimal effort.

How do compression fittings work?
Standard compression fittings are simple and easy to use fitting as simple as the name sounds. Made up of three basic pieces, a compression fitting uses a threaded nut with a hole in that tightens down to the compression fittings body. This tightens down over a small typically brass ring called an Olive that is placed between the nut and the body of the fitting. This olive is compressed by the tightening of the nut to the body creating a sealed joint.

What size do I need?
Always check the exact size of the pipe or fitting to be used when plumbing and a range of metric and imperial fittings are available and ensuring the correct size is selected is key to making an exact and well-sealed joint.

Using Compression Fittings
Most standard compression fittings just require two spanners to install, these can either be fixed or adjustable spanners used to tighten the fittings nut down for the best seal. PTFE tape may also be used over the fittings thread to give the best seal and limit the risk of leaking over time.

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Description Price Compression Connection Pipe Diameter Fitting Type Material Threaded Connection Fitting Direction Thread Size Thread Standard Gender
RS Stock No. 234-8809
Mfr. Part No.WU1048
BrandWade
$11.215
Each (In a Pack of 2)
units
3/8in Coupler Brass - Straight - - -
RS Stock No. 234-8865
Mfr. Part No.WU4068/3
BrandWade
$7.595
Each (In a Pack of 2)
units
3/8in Coupler Brass 1/4 in BSPP Male Straight 1/4in BSPP Male
RS Stock No. 234-8916
Mfr. Part No.WU7063
BrandWade
$10.105
Each (In a Pack of 2)
units
1/4in Coupler Brass 1/4 in BSPT Male Straight 1/4in BSPT Male
RS Stock No. 234-8893
Mfr. Part No.WU4068/11
BrandWade
$14.755
Each (In a Pack of 2)
units
3/8in Coupler Brass 1/2 in BSPP Male Straight 1/2in BSPP Male
RS Stock No. 234-8821
Mfr. Part No.WU1063
BrandWade
$6.605
Each (In a Pack of 2)
units
1/4in Coupler Brass 1/4 in BSPP Male Straight 1/4in BSPP Male
RS Stock No. 234-9149
Mfr. Part No.WU2051
BrandWade
$30.19
Each (In a Pack of 2)
units
1/2in Tee Brass - - - - -
RS Stock No. 234-8966
Mfr. Part No.WU7068/3
BrandWade
$9.375
Each (In a Pack of 2)
units
3/8in Coupler Brass 1/4 in BSPT Male Straight 1/4in BSPT Male
RS Stock No. 234-9010
Mfr. Part No.WU7071
BrandWade
$13.015
Each (In a Pack of 2)
units
1/2in Coupler Brass 1/2 in BSPT Male Straight 1/2in BSPT Male
RS Stock No. 234-8843
Mfr. Part No.WU1065
BrandWade
$5.56
Each (In a Pack of 2)
units
5/16in Coupler Brass 1/4 in BSPP Male Straight 1/4in BSPP Male
RS Stock No. 234-8988
Mfr. Part No.WU7068/11
BrandWade
$13.165
Each (In a Pack of 2)
units
3/8in Coupler Brass 1/2 in BSPT Male Straight 1/2in BSPT Male
RS Stock No. 234-8786
Mfr. Part No.WU1043
BrandWade
$7.325
Each (In a Pack of 2)
units
1/4in Coupler Brass - Straight - - -
RS Stock No. 234-8900
Mfr. Part No.WU1071
BrandWade
$13.095
Each (In a Pack of 2)
units
1/2in Coupler Brass 1/2 in BSPP Male Straight 1/2in BSPP Male
RS Stock No. 234-9133
Mfr. Part No.WU2048
BrandWade
$21.46
Each (In a Pack of 2)
units
3/8in Tee Brass - - - - -
RS Stock No. 234-8994
Mfr. Part No.WU7071/3
BrandWade
$16.735
Each (In a Pack of 2)
units
1/2in Coupler Brass 1/4 in BSPT Male Straight 1/4in BSPT Male
RS Stock No. 234-9060
Mfr. Part No.WU8023
BrandWade
$11.815
Each (In a Pack of 2)
units
1/4in Equal Elbow Brass 1/4 in BSPT Male 90° 1/4in BSPT Male
RS Stock No. 234-9105
Mfr. Part No.WU8031
BrandWade
$22.205
Each (In a Pack of 2)
units
1/2in Equal Elbow Brass 1/2 in BSPT Male 90° 1/2in BSPT Male
RS Stock No. 234-8887
Mfr. Part No.WU1068
BrandWade
$13.485
Each (In a Pack of 2)
units
3/8in Coupler Brass 3/8 in BSPP Male Straight 3/8in BSPP Male
RS Stock No. 234-9111
Mfr. Part No.WU2043
BrandWade
$12.105
Each (In a Pack of 2)
units
1/4in Tee Brass - - - - -