- "poolife MPT Extra System Startup Kit" cannot be added to your cart. "poolife MPT Extra 3" Chlorinating Tablets – 21 lbs" is out of stock.
A long-time favorite of loyal pool owners everywhere, this system makes use of the traditional tablet-based approach to sanitizing. These distinctive blue-speckled tablets produce crystal clear results plus the “extra” additive in the name also means soft water in your pool!