The Water Tech Pool Blaster O-Ring and Gasket, with On/Off Knob is a replacement o-ring and gasket for the Pool Blaster, including a new On/Off knob. The o-ring and gasket with the new On/Off knob is fully compatible with all Pool Buster models including 1st generation models that did not have flat gasket on the knob.

Specifications:
• Replacement O-Ring and Gasket with On/Off Knob
• Compatible with all Pool Buster models including 1st generation models that did not have flat gasket on the knob