Diffuser - 370w + 500w Pool Pumps - SP-JP13-21

Product Title:

Diffuser for 370W / 500W Pool Pumps – SP-JP13-21

Short Description:

Replacement diffuser (SP-JP13-21) for SP-JP13 pool pumps. Enhances flow efficiency and pressure stabilization in 370W and 500W models.

Full Description:

The SP-JP13-21 is a specially designed diffuser for use in 370W and 500W swimming pool pumps within the SP-JP13 series. Positioned between the impeller and the pump casing, the diffuser channels water flow from the impeller to the outlet, converting velocity into pressure and improving overall pump efficiency. Made from durable, corrosion-resistant plastic, this component is essential for maintaining optimal circulation and performance in chlorinated or saltwater pool environments.

• Model: SP-JP13-21

• Component: Pump Diffuser

• Pump Compatibility: SP-JP13 series (370W and 500W models)

• Material: Reinforced plastic (chemical- and UV-resistant)

• Function:

  • Directs and smooths water flow from impeller to discharge

  • Enhances hydraulic efficiency and pressure output

  • Reduces turbulence within pump housing

• Applications:

  • Swimming pools and spas

  • Water features and fountains

  • Small-scale irrigation and circulation systems

• OEM Reference: SP-JP13-21

• Installation: Fits directly over the impeller within the pump housing; secure in place with retaining features

Estimated Weight:

Approx. 0.2 – 0.4 kg