Hayward Power-Flo Pump Housing O-Ring - For All Accu-Tab & Acid-Rite Units The Hayward Housing O-Ring is designed for PAPP100 and PAPP150 motors. This o-ring is also compatible for the Hayward Power-Flo LX housing. A durable replacement part, this Hayward o-ring is made to all OEM standards and specification for ultimate satisfaction. Hayward pumps lead the industry as an energy efficient solutions. Hayward pumps and accessories are engineered for dependability in the most demanding systems.