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. 439-751
Mfr. Part No.0109 04 13
BrandLegris
TWD120.40
Each (In a Pack of 5)
units
4mm Elbow Brass 1/4 in BSPT Male 90° 1/4in BSPT Male
RS Stock No. 231-4963
Mfr. Part No.0105 06 13
BrandLegris
TWD64.80
Each (In a Pack of 5)
units
6mm Coupler Brass 1/4 in BSPT Male Straight 1/4in BSPT Male
RS Stock No. 231-5017
Mfr. Part No.0105 12 13
BrandLegris
TWD173.20
Each (In a Pack of 5)
units
12mm Coupler Brass 1/4 in BSPT Male Straight 1/4in BSPT Male
RS Stock No. 231-4979
Mfr. Part No.0105 08 13
BrandLegris
TWD67.80
Each (In a Pack of 5)
units
8mm Coupler Brass 1/4 in BSPT Male Straight 1/4in BSPT Male
RS Stock No. 439-565
Mfr. Part No.1802 06 00
BrandLegris
TWD1,028.00
Each
units
- Elbow - - 90° - - -
RS Stock No. 295-2622
Mfr. Part No.1805 16 21
BrandLegris
TWD1,393.00
Each
units
- Coupler - 1/2 in BSPT Male Straight 1/2in BSPT -
RS Stock No. 439-408
Mfr. Part No.1805 08 10
BrandLegris
TWD533.00
Each
units
- Coupler - 1/8 in BSPT Male Straight 1/8in BSPT -
RS Stock No. 439-587
Mfr. Part No.1802 12 00
BrandLegris
TWD1,503.00
Each
units
- Elbow - - 90° - - -
RS Stock No. 295-2852
Mfr. Part No.1810 06 00
BrandLegris
TWD188.60
Each (In a Pack of 5)
units
- Sleeve Nut - M10 x 1 - M10 x 1 Metric -
RS Stock No. 231-4985
Mfr. Part No.0105 10 13
BrandLegris
TWD101.00
Each (In a Pack of 5)
units
10mm Coupler Brass 1/4 in BSPT Male Straight 1/4in BSPT Male
RS Stock No. 293-6557
Mfr. Part No.0109 10 13
BrandLegris
TWD169.80
Each (In a Pack of 5)
units
10mm Elbow Brass 1/4 in BSPT Male 90° 1/4in BSPT Male
RS Stock No. 439-739
Mfr. Part No.0109 06 10
BrandLegris
TWD116.60
Each (In a Pack of 5)
units
6mm Elbow Brass 1/8 in BSPT Male 90° 1/8in BSPT Male
RS Stock No. 231-4957
Mfr. Part No.0105 06 10
BrandLegris
TWD60.00
Each (In a Pack of 5)
units
6mm Coupler Brass 1/8 in BSPT Male Straight 1/8in BSPT Male
RS Stock No. 231-5023
Mfr. Part No.0105 12 17
BrandLegris
TWD178.40
Each (In a Pack of 5)
units
12mm Coupler Brass 3/8 in BSPT Male Straight 3/8in BSPT Male
RS Stock No. 231-4812
Mfr. Part No.0116 12 00
BrandLegris
TWD358.60
Each (In a Pack of 5)
units
12mm Bulkhead Coupler Brass - Straight - - -
RS Stock No. 293-6541
Mfr. Part No.0109 08 17
BrandLegris
TWD166.80
Each (In a Pack of 5)
units
8mm Elbow Brass 3/8 in BSPT Male 90° 3/8in BSPT Male
RS Stock No. 231-4806
Mfr. Part No.0116 08 00
BrandLegris
TWD161.60
Each (In a Pack of 5)
units
8mm Bulkhead Coupler Brass - Straight - - -
RS Stock No. 439-874
Mfr. Part No.0102 06 00
BrandLegris
TWD146.20
Each (In a Pack of 5)
units
6mm Equal Elbow Brass - 90° - - -
RS Stock No. 295-2666
Mfr. Part No.1809 16 21
BrandLegris
TWD1,795.00
Each
units
- Elbow - 1/2 in BSPT Male 90° 1/2in BSPT -
RS Stock No. 293-6642
Mfr. Part No.0106 10 00
BrandLegris
TWD154.80
Each (In a Pack of 5)
units
10mm Equal End Coupler Brass - Straight - - -