Zodiac - Varistance Z400 - R0815700

Zodiac – Varistance Z400 – R0815700

The Zodiac Varistance Z400 (SKU: R0815700) is a genuine OEM replacement varistance component designed specifically for Zodiac automatic pool cleaner systems. A varistance (also referred to as a flow valve or variable resistance component) plays a critical role in regulating the water flow and suction pressure distributed through the pool cleaner’s hose and body. By managing the balance of hydraulic pressure, it ensures that the cleaner operates at its optimal performance level, moving predictably across the pool floor and walls without losing suction efficiency.

As a Zodiac genuine spare part, the R0815700 is engineered to exact factory tolerances, ensuring a precise fit and reliable performance when replacing a worn, cracked, or malfunctioning varistance unit. Using a genuine replacement component rather than an aftermarket alternative helps maintain the integrity of your cleaner’s hydraulic circuit and prolongs the overall lifespan of the unit.

Technical characteristics and compatibility

The Varistance Z400 is a hydraulic regulation component that works within the suction-side pool cleaner system. It interfaces directly with the cleaner’s internal flow path, modulating the water volume and pressure that drives the cleaner’s movement and debris pickup. The component is constructed from durable pool-grade materials capable of withstanding continuous immersion in chemically treated pool water, including chlorinated and salt-chlorinated environments.

This part carries Zodiac’s own part number R0815700, which is the authoritative reference for ordering and compatibility verification. Always cross-reference your pool cleaner’s model number against Zodiac’s official parts list to confirm fitment before installation. Installation typically requires no specialist tools and can be completed by a competent pool owner or technician during routine maintenance.

Suitability and application

The Zodiac Varistance Z400 is intended for use with compatible Zodiac suction-side automatic pool cleaners from the Z400 range. It is suitable for both in-ground and above-ground pool installations where a Zodiac suction cleaner is connected to the pool’s filtration return or skimmer line. This part is particularly relevant when the pool cleaner exhibits erratic movement, reduced suction, or fails to cover the pool surface evenly — symptoms that often indicate a deteriorated or blocked varistance component.

This is a replacement spare part intended for maintenance and repair purposes. It is not a standalone pool cleaner and requires an existing compatible Zodiac pool cleaner unit for installation. If you are unsure whether this part is compatible with your specific cleaner model, consult Zodiac’s official parts documentation or contact an authorised Zodiac dealer.