Cov kav dej thiab fittings yog tsim los ntawm cov mis ntxiv nrog UV stabilizer, uas ua rau lawv lub neej ua haujlwm sab nraum zoov thiab ua rau cov khoom siv ntau dua. Qhov no ua rau lawv muaj zog dua thiab tsis tshua muaj kev puas tsuaj hauv lub cev. Ntxiv rau qhov snap clip, nws yog hais txog UV ruaj khov 2 xyoos.
Cov khoom siv thiab cov kav dej no yog tsim los tsis muaj cov chaw tsim khoom lag luam, ua rau lawv zoo nkauj dua.
Lub qhov (socket) thiab spigot ntawm rooj tog qib accessories yog ntev tshaj li cov atmospheric siab, thiab qhov kawg yog chamfered, uas muab kev txhawb ntxiv thiab txhim kho kev zoo nkauj tib lub sijhawm.
Kev kho saum npoo ntawm cov rooj tog zaum / cov khoom siv qib qib yog glossy dua li cov kav dej PVC thiab tiv thaiv khawb thaum tsim khoom, ntim khoom thiab kev thauj mus los.