The Koller Basic pump series are compact and quiet single speed pumps..
Koller pumps are more commonly used on whirlpool baths but can be found on some European and Chinese hot tubs.

 Suitable for use as circulation pump or as a boost pump on a jet circuit of 4-6 jets.

Self Drain pumps draw water via the inlet situated at the bottom of the wet end front face. They will drain Via this connection to, back into the bath and down the plug hole.

An additional feature to these pumps is the C-Profile mount system which integrates with the Koller Quick Fix Vario supports

Inlet and outlet port size is 1.5"

Top Tip: 1.5", 2.0" & 2.5" union connection sizes are just terms coined by the hot tub industry, the actual outside diameter of a pump connection is as follows.

• 1.5" pump connections have an outside diameter of approximately 63mm.
• 2.0" pump connections have an outside diameter of approximately 79mm.
• 2.5" pump connections have an outside diameter of approximately 92mm.