Check the listing for details. CuLator Spa-Pak 6-Month Hot Tub Metal Eliminator & Stain Preventer w/Gator Egg. Condition: New. Listed at 34.95 USD. CuLator Spa-Pak 6-Month Hot Tub Metal Eliminator & Stain Preventer w/Gator Egg CuLator Spa Pak is a breakthrough to eliminate hot tub water discoloration from metals, and prevent stains. It's easy: just drop into your skimmer. Unlike common metal sequestering products, CuLator acts like a sponge to absorb & trap dissolved metals. Say goodbye to blue, green, yellow, and brown metallic discoloration. Enjoy crystal clear, metal-free spa water. Eliminates metals and water discoloration for up to 6 months Effective for use with all systems Also works perfectly with Cleanwater Blue, Nature2, Frog, PoolRx Non-toxic, phosphate-free Ideal for well-water users Product notes: Leave in skimmer continually, or use for a few days when you fill spa, then rinse, dry and reuse. Removes discoloring copper, iron, manganese, cobalt, nickel, lead. For severe discoloration and maximum effectiveness, use with Metal Free and Sea Klear Natural Clarifier. Use PreFresh fill filter. Keep a spare CuLator on hand.CuLator Spa-Pak 6-Month Hot Tub Metal Eliminator & Stain Preventer w/Gator Egg CuLator Spa Pak is a breakthrough to eliminate hot tub water discoloration from metals, and prevent stains. It's easy: just drop into your skimmer. Unlike common metal sequestering products, CuLator acts like a sponge to absorb & trap dissolved metals. Say goodbye to blue, green, yellow, and brown metallic discoloration. Enjoy crystal clear, metal-free spa water. Eliminates metals and water discoloration for up to 6 months Effective for use with all systems Also works perfectly with Cleanwater Blue, Nature2, Frog, PoolRx Non-toxic, phosphate-free Ideal for well-water users Product notes: Leave in skimmer continually, or use for a few days when you fill spa, then rinse, dry and reuse. Removes discoloring copper, iron, manganese, cobalt, nickel, lead. For severe discoloration and maximum effectiveness, use with Metal Free and Sea Klear Natural Clarifier. Use PreFresh fill filter. Keep a spare CuLator on hand.