Pre-cut Gaskets

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
- SPX3000T gasket
- G-345-9 equivalent
Why choose this part:
- Direct-fit profile for quick, reliable installs
- Precision-cut for consistent thickness and sealing pressure
- Suitable for routine maintenance or full pump overhauls
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Weight 0.5 lbs

Dimensions 10 × 10 × 1 in
P57410 Volute Gasket (BG P57410)
P57410 Volute Gasket (BG P57410)
Bell & Gossett (B&G) Volute Gasket – P57410

The P57410 volute gasket (BG P57410) is a high-quality replacement gasket designed for use in Bell & Gossett pump systems. This gasket provides a reliable seal between the volute and pump housing, helping prevent leaks and maintain proper system pressure.

Manufactured to meet original specifications, the P57410 gasket ensures a precise fit and dependable performance in demanding pump 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.

Common applications (verify fit)
- Bell & Gossett PD-35 and PD-37
- Series 60 “AA”
- 1522 series
- Some MF-60 applications (commonly referenced for 5-1/4″ and 6-1/4″ impeller versions)
- Often cross-referenced for select Series 90 “AA”, 1535, and 2522 applications (confirm with pump model/parts breakdown)
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Weight 0.5 lbs

Dimensions 10 × 10 × 1 in
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:
- Part: C21-10 Diffuser
- Also called: Diffuser gasket / seal ring
Compatibility:
- Motor range: ~1–2.5 HP diffuser applications
- Pump families: Sta-Rite / Berkeley / Pentair equivalents
- Also used on: Anthony centrifugal pool pumps (select models)
Why this part:
- Direct-fit profile for quick, reliable installs
- Consistent thickness for uniform sealing pressure
- Smooth edges for easier alignment and reassembly
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Weight 0.5 lbs

Dimensions 10 × 10 × 1 in
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:
- Part: C21-2 Diffuser Ring
- Also called: D-Series Diffuser O-Ring / Gasket
- Pump families: Sta-Rite D & ED series (Berkeley/Pentair equivalents)
Why choose this part:
- Direct-fit profile for fast, reliable installs
- Consistent thickness for even sealing pressure
- Smooth edges for easier alignment during reassembly
Explore our full lineup of Pre-cut Gaskets.

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Have questions? Call us anytime-we’re here to help
Weight 0.5 lbs

Dimensions 10 × 10 × 1 in
Sta-Rite C-20-103
Sta-Rite C-20-103

Item #SMSG 12B; SMSG 12BRR
Sta-Rite C-20-103 — Pre-Cut Gasket (C20103 / C20123)

Pre-cut housing/volute gasket for Sta-Rite pump assemblies. Precision-cut to seat cleanly and compress evenly—helping prevent leaks during routine service or rebuilds.

Specs
- Dimensions: ID 3.125″ × OD 4.500″
- Material: 3/64″ vellumoid (vegetable fiber), brown (standard); Red Rubber
- Cross-reference: Sta-Rite C-20-103 (C20103)
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Weight 0.5 lbs

Dimensions 10 × 10 × 1 in
Sta-Rite C-20-123
Sta-Rite C-20-123

Item #SMSG 12B; SMSG 12BRR-1
Sta-Rite C-20-123 — Pre-Cut Gasket (C20103 / C20123)

Pre-cut housing/volute gasket for Sta-Rite pump assemblies. Precision-cut to seat cleanly and compress evenly—helping prevent leaks during routine service or rebuilds.

Specs
- Dimensions: ID 3.125″ × OD 4.500″
- Material: 3/64″ vellumoid (vegetable fiber), brown (standard); Red Rubber
- Cross-reference: Sta-Rite C-20-123 (C20123)
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Weight 0.5 lbs

Dimensions 10 × 10 × 1 in
Sta-Rite C-20-21
Sta-Rite C-20-21

Item #SMSG 4
Sta-Rite C-20-21 — Pre-Cut Gasket (C2021)

Pre-cut housing/volute gasket for Sta-Rite pump assemblies. Precision-cut to seat cleanly and compress evenly—helping prevent leaks during routine service or rebuilds.

Specs
- Material: 3/64″ vellumoid (vegetable fiber), brown
- Dimensions: ID 6.375″ × OD 7.875″
Cross-reference
- Sta-Rite: C-20-21 / C2021
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Weight 0.5 lbs

Dimensions 10 × 10 × 1 in
Sta-Rite c-20-46
Sta-Rite c-20-46

Item #SMSG 1
Sta-Rite C-20-46 — Pre-Cut Gasket (C2046)

Pre-cut housing/volute gasket for Sta-Rite pump assemblies. Precision-cut to seat cleanly and compress evenly—helping prevent leaks during routine service or rebuilds.

Specs
- Material: 3/64″ vellumoid (vegetable fiber), brown
- Dimensions: ID 7.937″ × OD 9.625″
Cross-reference
- Sta-Rite: C-20-46 / C2046
Explore our full lineup of Pre-cut Gaskets.

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Weight 0.5 lbs

Dimensions 10 × 10 × 1 in
Sta-Rite C-20-72
Sta-Rite C-20-72

Item #SMSG 10
Sta-Rite C-20-72 — Pre-Cut Gasket (C2072)

Pre-cut housing/volute gasket for Sta-Rite pump assemblies. Precision-cut to seat cleanly and compress evenly—helping prevent leaks during routine service or rebuilds.

Specs
- Material: 3/64″ vellumoid (vegetable fiber), brown
- Dimensions: ID 4.750″ × OD 5.625″
Cross-reference
- Sta-Rite: C-20-72 / C2072
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
Weight 0.5 lbs

Dimensions 10 × 10 × 1 in