Pool Pump Gaskets
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Hayward SPX1600R Gasket
Hayward SPX1600R Gasket
Hayward SPX1600R —Pre-Cut Gasket
The Hayward SPX1600R gasket is a high-quality replacement component designed for use in Hayward pool pump systems. This gasket provides a reliable seal between mating surfaces, helping prevent leaks and maintain proper system performance.
Manufactured to meet original specifications, the SPX1600R gasket ensures a precise fit and dependable performance in pool and water circulation applications.
Lower your cost per gasket with quantity-based pricing—discounts are automatically applied at checkout as your order quantity increases. See the pricing table above.
Compatible pump series
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Hayward Super II — SP3000 / SP3000X
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Hayward Super Pump — SP1600X / SP2600X
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Hayward MaxFlo — SP1800X / SP2800X
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XE / VS pump variants using the SPX1600R housing gasket profile
Rebuilding a Hayward Super Pump or Super II?This diffuser gasket fits both pumps. Get it in a complete kit with the shaft seal and housing gasket, or add the parts you need.
- Hayward Super Pump seal kit — PS-201 seal, SPX1600T and SPX1600R in one box
- Hayward Super II seal kit — PS-201 seal, SPX3000T and SPX1600R in one box
- 201c PS-201 shaft seal — 3/4 in., replaces SPX1600Z2
- Hayward SPX1600T housing gasket — Super Pump
- Hayward SPX3000T housing gasket (G-345) — Super II
Doing the job yourself? Read How to Replace a Mechanical Pump Seal.
Explore our full lineup of Pre-cut Gaskets.
Looking for more? Check out our Mechanical Seals, Pump Repair Kits , & Parts/Accessories
Have questions? Call us anytime-we’re here to help

Hayward SPX1600T Gasket
Hayward SPX1600T Gasket

Hayward SPX3000T Gasket (G-345-9)
Hayward SPX3000T Gasket (G-345-9)
Hayward SPX3000T Gasket (G-345-9)— Pre-Cut Gasket
The Hayward SPX3000T gasket (G-345-9) is a high-quality replacement component designed for use in Hayward pump systems. This gasket provides a reliable seal between mating surfaces, helping prevent leaks and maintain proper system performance.
This part is also commonly referenced as G-345-9, making it a compatible replacement across multiple Hayward pump configurations.
Manufactured to meet original specifications, the SPX3000T gasket ensures a precise fit and dependable performance in pool and water circulation applications.
Lower your cost per gasket with quantity-based pricing—discounts are automatically applied at checkout as your order quantity increases. See the pricing table above.
Cross-references
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SPX3000T gasket
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G-345-9 equivalent
Rebuilding a Hayward Super II?Get this housing gasket in a complete kit with the shaft seal and diffuser gasket, or add the parts you need.
- Hayward Super II seal kit — PS-201 seal, SPX3000T and SPX1600R in one box
- 201c PS-201 shaft seal — 3/4 in., replaces SPX1600Z2
- Hayward SPX1600R diffuser gasket
Have a Super Pump (SP1600 / SP2600 series)? It takes the SPX1600T housing gasket instead — or get the Hayward Super Pump seal kit.Doing the job yourself? Read How to Replace a Mechanical Pump Seal.
Explore our full lineup of Pre-cut Gaskets.
Looking for more? Check out our Mechanical Seals, Pump Repair Kits , & Parts/Accessories
Have questions? Call us anytime-we’re here to help

Sta-Rite / Berkeley / Pentair Diffuser Ring C21-10
Sta-Rite / Berkeley / Pentair Diffuser Ring C21-10
Sta-Rite / Berkeley / Pentair Diffuser C21-10 — Gasket / Seal Ring
Pre-cut diffuser seal ring (C21-10) is a direct replacement component designed for use in Sta-Rite, Berkeley, and Pentair pump systems to maintain proper flow and performance. Sized to seat cleanly on the diffuser for even compression and a leak-tight seal during service or rebuilds.
Cross-reference / Names:
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Part: C21-10 Diffuser
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Also called: Diffuser gasket / seal ring
Compatibility:
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Motor range: ~1–2.5 HP diffuser applications
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Pump families: Sta-Rite / Berkeley / Pentair equivalents
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Also used on: Anthony centrifugal pool pumps (select models)
Why this part:
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Direct-fit profile for quick, reliable installs
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Consistent thickness for uniform sealing pressure
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Smooth edges for easier alignment and reassembly
Explore our full lineup of Pre-cut Gaskets.
Looking for more? Check out our Shaft Seals, Pump Repair Kits , & Parts/Accessories
Have questions?- Call us anytime- we-re here to help

STA-RITE / BERKELEY / PENTAIR DIFFUSER RING C21-2
STA-RITE / BERKELEY / PENTAIR DIFFUSER RING C21-2
Sta-Rite / Berkeley / Pentair Diffuser Ring C21-2
Pre-cut diffuser ring gasket (C21-2) for Sta-Rite, Berkeley, and Pentair D-series / ED-series pumps. Sized to seat cleanly on the diffuser, providing uniform compression and a leak-tight seal after service or rebuilds.
Cross-references & use:
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Part: C21-2 Diffuser Ring
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Also called: D-Series Diffuser O-Ring / Gasket
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Pump families: Sta-Rite D & ED series (Berkeley/Pentair equivalents)
Rebuilding a Sta-Rite D-series pump? The diffuser ring is one of four parts that come out at a standard seal service — you will also need the mechanical seal, the shaft sleeve and the housing gasket.
All four together in one part number:
Sta-Rite D-Series Pump Repair Kit — PS-3883 seal, C23-58 shaft sleeve, this C21-2 diffuser ring and C20-46 gasket
Not sure what your rebuild needs? Call or text 561-414-1046 — no purchase required.
Explore our full lineup of Pre-cut Gaskets.
Looking for more? Check out our Shaft Seals, Pump Repair Kits , & Parts/Accessories
Have questions? Call us anytime-we’re here to help

Sta-Rite / Pentair PW22-1Check Valve Flapper (Flapper Gasket)
Sta-Rite / Pentair PW22-1Check Valve Flapper (Flapper Gasket)
Item #SH-flapper
Sta-Rite / Pentair PW22-1 — Flapper Gasket
The replacement check valve flapper for Sta-Rite DPC Series pumps, Sta-Rite / Pentair part PW22-1. Commonly called a flapper gasket, and listed by the manufacturer as a check valve flapper — the same part under both names.
Lower your cost per gasket with quantity-based pricing—discounts are automatically applied at checkout as your order quantity increases. See the pricing table above.
Fits
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Brand: Sta-Rite / Pentair
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Part: PW22-1
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Series: DPC Series medium head centrifugal and self-priming utility pumps
Need Help?
Not sure this is your part? Send a photo of the old flapper and your pump model to info@sealhouseusa.com, or call or text 561-414-1046 — our specialists will confirm it. No purchase required.
Explore our full lineup of Pre-cut Gaskets.
Looking for more? Check out our Shaft Seals, Pump Repair Kits , & Parts/Accessories
Have questions?- Call us anytime- we-re here to help
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