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. 432-0235
Mfr. Part No.709005
TWD161.50
Each (In a Pack of 2)
units
10mm Coupler Brass - Straight - - -
RS Stock No. 369-1536
Mfr. Part No.709058
TWD117.50
Each (In a Pack of 2)
units
22mm Coupler Brass - Straight - - -
RS Stock No. 432-0415
Mfr. Part No.721009
TWD532.00
Each (In a Pack of 2)
units
28mm Equal Tee Brass - - - - -
RS Stock No. 369-1659
Mfr. Part No.721007
TWD124.00
Each (In a Pack of 2)
units
15mm Equal Tee Brass - - - - -
RS Stock No. 432-0409
Mfr. Part No.721005
TWD272.00
Each (In a Pack of 2)
units
10mm Equal Tee Brass - - - - -
RS Stock No. 285-8659
Mfr. Part No.7B4007
TWD101.50
Each (In a Pack of 2)
units
15mm Coupler Brass - Straight - - -
RS Stock No. 369-1558
Mfr. Part No.711038
TWD106.50
Each (In a Pack of 2)
units
22mm Coupler Brass 3/4 in BSPP Male Straight 3/4in BSPP Male
RS Stock No. 432-0493
Mfr. Part No.720017
TWD116.50
Each (In a Pack of 2)
units
15mm Coupler Brass 1/2 in BSPP Female Elbow 1/2in BSPP Female
RS Stock No. 432-0500
Mfr. Part No.720038
TWD202.00
Each (In a Pack of 2)
units
22mm Coupler Brass 3/4 in BSPP Female Elbow 3/4in BSPP Female
RS Stock No. 432-0465
Mfr. Part No.717018
TWD157.00
Each (In a Pack of 2)
units
22mm Coupler Brass 3/4 in BSP Male Elbow 3/4in BSP Male