Jandy Diffuser with O-Ring & Screw FHPM 1.5-2.5 HP, R0479701 In stock$55⁹⁹

Jandy R0479701 Flo Pro FHPM pump diffuser with o-ring and screw

Jandy Diffuser with O-Ring & Screw FHPM 1.5-2.5 HP, R0479701

Name: Jandy Diffuser with O-Ring & Screw FHPM 1.5-2.5 HP, R0479701
Brand: Jandy
SKU: TLD-101-2039
Price: 55.99 USD
Availability: InStock

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$55⁹⁹

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Quick overview

Genuine Jandy part Factory diffuser R0479701, not an aftermarket substitute.
O-ring and screw included The diffuser arrives with its o-ring and mounting screw, so nothing else has to be sourced.
Flo Pro FHPM, 1.5 to 2.5 HP Sized for the FHPM series pumps across that horsepower range.
Shapes the flow The diffuser wraps the impeller and turns its output into usable pressure through the volute.
A known wear point Diffusers wear and crack at the impeller face, and a tired one quietly costs flow.
Works with the impeller Techs commonly renew the diffuser and impeller together while the wet end is already open.

Full description and specifications ↓

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Product details

Jandy R0479701 is the replacement diffuser for Flo Pro FHPM pumps rated from 1.5 to 2.5 HP. It ships as a set: the diffuser, its o-ring and the mounting screw.

What the diffuser does

The diffuser sits directly over the impeller and holds a tight clearance against it. That clearance is what converts the impeller spin into pressure instead of letting water churn in the volute. Wear the clearance out, and the pump keeps running while flow and head both fall away.

Signs it is due

Reduced flow at the returns, a filter that no longer builds pressure the way it used to, or visible scoring and cracking around the diffuser throat all point the same direction. Because the impeller runs inside it, check both parts while the wet end is open.

Fitting

The o-ring and screw come in the box, so the diffuser can go straight back in once the old one is out. Lubricate the o-ring before reassembly and seat the screw evenly.

From Pool School

How to Prime a Pool PumpFrom the breaker to a full pot, each manufacturer's time limit, and what to check when it won't catch prime. Read Replace the Pool Pump Motor or the Whole Pump?The manufacturers' tests first, what each repair replaces, and the federal motor rule. Read

Specifications
Brand	Jandy
Manufacturer part number	R0479701
UPC	052337034555
Type	Pump diffuser
Series	Flo Pro FHPM
Horsepower range	1.5 to 2.5 HP
Included	Diffuser, o-ring, screw
Part type	Pool pump part
Shipping weight	1 lb
Ships	Parcel