Hi there! Any benefits to using the larger rainbow 300-29 versus the rainbow 300.

Model 300 - Holds 11 large or 98 small tablets. Treats 12,000 to 48,000 gallons.
Model 300-29 - Feeder with triple-capacity 29 in. chamber. Treats 14,000 to 57,000 gallons.

My pool is an IG liner at 19x37. I realize the normal 300 is big enough but I found a vendor that has Model 300-29 for only $10 more. I think from a convenience point, this would be better. Longer time in between refills, correct?