Leisure Time ALK-12 Alkalinity Increaser for Spas and Hot Tubs (12 Pack), 2 lb safety-knives Hayward DEX4820BTC Filter Head with

Hayward DEX4820BTC Filter Head with Clamp System Replacement for Select Hayward Filters

Inlet return fitting comes with gasket and locknut

Compatible with Pentair pool and spa cleaner models LLD15

this sealant helps control the spread of fire

Fits Zodiac Jandy CV Series cartridge pool and spa filter models CV340

Leisure Time ALK-12 Alkalinity Increaser for Spas and Hot Tubs (12 Pack), 2 lb safety-knives Hayward DEX4820BTC Filter Head withLeisure Time ALK 12 Alkalinity Increaser for Spas and Hot Tubs (12 Pack), 2 lbCompatible With Chlorine, Bromine, Ozone And Biguanide SanitizersBalance Spa Alkalinity And Hot Tub Alkalinity To Prevent Ph Bounce And Other Spa Water ProblemsEffectively Raises Alkalinity LevelsNo Assembly Required