Hayward DIY6 Salt and Swim, Salt Chlorination System with 6-Month Salt Cell for Swimming Pool Up to 25000-Gallon For in-ground pools only up to 25,000-gallon DIY installation with no gluing required, Plugs into 120-volt, GFCI outlet Super chlorination feature, Easy to interpret LED control panel, 2 year limited warranty (control box) Online DIY AssistantTM