Waterway Handle [Curved Top Access Air Control Gray] (662-2107) pooltool and this Darlly cartridge is

and this Darlly cartridge is designed for compatible applications referencing FC-1003

0kW heater is designed for compatible systems where the original control electronics and heater-side setup need to be restored together rather than repaired in separate pieces

This type of component is especially useful when the existing spa plumbing and control system are already built around XP2E-style two-speed pump performance

or deterioration from extended use and cleaning cycles

Hayward true union ball valve handle

Waterway Handle [Curved Top Access Air Control Gray] (662-2107) pooltool and this Darlly cartridge isThe Waterway Handle [Curved Top Access Air Control Gray] (662 2107) is a Waterway air control replacement part designed for compatible spa air systems. It helps regulate or complete the air control assembly used to adjust air mixture through the jet system, supporting a more comfortable and responsive hydrotherapy experience. Air controls are commonly replaced when handles, caps, bodies, or internal components become worn, cracked, stiff, or