Val-Pak Generic Pentair Am Prod UltraFlow 2.0-3.0HP Diffuser (39015500) lightingparts A properly working weir helps

A properly working weir helps improve surface skimming by controlling how floating debris and surface water move into the skimmer throat

difficult to rotate

In larger shaft applications

The Waterway 550-9347 deluxe return fitting with eyeball is designed for compatible return applications using a 1-1/2 inch barb connection

Installed in the proper spa-light setup

Val-Pak Generic Pentair Am Prod UltraFlow 2.0-3.0HP Diffuser (39015500) lightingparts A properly working weir helpsThe Val Pak generic Pentair American Products UltraFlow diffuser is designed for compatible 2. 0 HP through 3. 0 HP pump applications where the higher output wet end needs the correct internal flow guiding component. Diffusers are useful because they help shape water movement after the impeller and play a major role in how efficiently the pump operates under load. This replacement is especially useful when the existing diffuser is damaged, worn down,