Imperial yeast L17 Harvest will impress you with it's ability to ferment pretty much any lager style you throw at it.

This great lager strain combines good flocculation characteristics with low sulfur and low diacetyl. Clean fermentations produce amazing bock, Helles, pilsner, dunkles, and just about any other lager style you throw its way. Fantastic choice for a house lager strain. 

50–60F (10–16C)

FLOCCULATION: MEDIUM

ATTENUATION: 70-74%

ALCOHOL TOLERANCE: 10%