Welcome to our forum.
I have a caldera spa. Do you perfer the Baqua Spa or the Monarch Silver Cartridge? Â
The silver cartridge with some chlorine (don't belive it if they say you can go chlorine free) is the way I go and it's works great.
I got the Monarch today. My caldera filter compartment has like a 2" pvc pipe that sticks up and the filter slides over that. The only way the monarch cartdridge will fit is if I stick it in the tube.. It wont stay in the filter long enough to slide the filter onto the 2" pip sticking up. I hope it doesnt block the suction.. anyone have a 2004 Caldera Niagra?