750ml child resistant flacon
Speeder drain cleaner gel is a really thick, liquid alkali. You don't need to call an expensive specialist.
It removes all plugging (hair, soap, food etc.) very quickly, even in 15 minutes. In this case pour half of the bottle into the clogged drain.
You can also use it for maintenance. In this case pour a little into all drains to prevent pluggings' formation.
It's not able to eliminate solid pluggings, for example pluggings by brick fragments after renovation.