1) 35,000 - The size of your pool in gallons
2) DE - The type filter you have (sand, DE, cartridge)
3) IG - If your pool is an AG (above ground) or IG (in ground)
4) Vinyl - If it's IG, tell us if it's vinyl, plaster/pebble, or fiberglass
5) 1HP pump, 125 GPM filter - If you know, tell us the size pump and the size (flow rate) of your filter.
Pentair Model 300 chlorinator
Pentair Propane heater