Chemically resistant to acids and alkalis; normally diluted hydrocarbons have little or no effect. _x000D__x000D_
Easily handles aggressive soil conditions (sulfates; carbonates industrial effluents and acid rain). _x000D__x000D_
Use for venting only. _x000D__x000D_
Do not install as part of the drainage system. _x000D__x000D_
Connection HxHxH. _x000D__x000D_
SDR35.