Pentair Challenger 1.0 HP Diffuser (355077Z) magnacraft Helps maintain a proper seal

Helps maintain a proper seal around the light lens

and a cleaner finished rebuild instead of a temporary patch

The Darlly 70402 filter cartridge is designed for compatible filtration systems that use 40 square feet of media with a 1-1/2 inch MPT bottom connection

and core design need to match the existing filter

As a targeted replacement

Pentair Challenger 1.0 HP Diffuser (355077Z) magnacraft Helps maintain a proper sealFor a 1. 0 HP Challenger pump, the diffuser is part of the internal geometry that helps turn impeller movement into useful water flow. This Pentair replacement diffuser supports correct pump operation when the original part is worn, warped, or broken. It is a smart choice during performance troubleshooting, especially when low flow, vibration, or internal wear points to wet end component damage. Built for compatible 1. 0 HP Challenger pump assemblies