MJ Fittings

MJ stands for Mechanical Joint and is a compression type of fitting. A mechanical joint is a time-saving, easily installed joint that insures long-term, trouble-free performance. Uncomplicated, this joint comprises a gland, gasket and bolts. It requires no mechanical skill to install, is unusually easy and fast to assemble.

When the bolts are tightened, two metal pieces are drawn together, which squeezes a rubber gasket that is between them. This compresses the gasket forcing it to press tightly against the pipe and make a seal. An MJ seal is rated for 350 psi for 2" to 24" fittings, and to 250 psi for 30" to 36" fittings.


3" Mechanical Joint Cap

3" Mechanical Joint Cap

3 Inch Mechanical Joint Cap..

$19.03 Ex Tax: $17.95

4" Mechanical Joint Cap

4" Mechanical Joint Cap

4 Inch Mechanical Joint Cap..

$20.59 Ex Tax: $19.42

4" Mechanical Joint Cap With 2" Tap

4" Mechanical Joint Cap With 2" Tap

4 Inch Mechanical Joint Cap with 2 Inch Tap..

$42.74 Ex Tax: $40.32

6" Mechanical Joint Cap

6" Mechanical Joint Cap

6 Inch Mechanical Joint Cap..

$37.99 Ex Tax: $35.84

6" Mechanical Joint Cap With 2" Tap

6" Mechanical Joint Cap With 2" Tap

6 Inch Mechanical Joint Cap With 2 Inch Tap..

$58.58 Ex Tax: $55.26

8" Mechanical Joint Cap

8" Mechanical Joint Cap

8 Inch Mechanical Joint Cap..

$57.82 Ex Tax: $54.55

8" Mechanical Joint Cap With 2" Tap

8" Mechanical Joint Cap With 2" Tap

8 Inch Mechanical Joint Cap With 2 Inch Tap..

$82.32 Ex Tax: $77.66

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