Badan pemasangan paip biasanya diperbuat daripada bahan asas yang sama dengan paip atau tiub yang disambungkan: Tembaga, keluli, PVC, CPVC atau ABS. Sebarang bahan yang dibenarkan oleh paip, kesihatan atau kod bangunan (mengikut mana yang berkenaan) boleh digunakan, tetapi ia mesti serasi dengan bahan lain dalam sistem, cecair yang disalurkan, dan suhu dan tekanan di dalam (dan luar) sistem. Kelengkapan tembaga atau gangsa di atas kuprum Biasa dalam sistem paip dan paip. Ketahanan api, rintangan kejutan, kekuatan mekanikal, anti-kecurian dan faktor lain juga mempengaruhi pilihan bahan untuk kelengkapan paip.

Pipe fittings are used in plumbing systems to connect straight sections of pipe or tubes, to accommodate different sizes or shapes, and for other purposes such as regulating (or measuring) fluid flow. These fittings are used in plumbing systems to control the transfer of water, gas or liquid waste within pipes or plumbing systems in domestic or commercial environments. Kelengkapan (especially uncommon types) require money, time, materials and tools to install and are an important part of plumbing and plumbing systems. Common pipe fittings mainly include: bebibir, elbows, gandingan, unions, spools, reducers, bushings, tees, diverter tees, crosses, topi, plugs, barbs and valves. Although valves are technically fittings, they are usually discussed separately.