961
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DESCRIPTION
Mechanical Seal 961 — T-6A (5/8″) | PS-961 Equivalent
Equal to industry standard 961 / PS-961.
Direct-fit T-6A single-spring seal for pool/spa and small-pump applications—built with a machined carbon face for smoother sealing and longer life in everyday service.At-a-glance: 5/8″ shaft • 1.25″ × 0.406″ cup seat • Machined carbon/ceramic faces • Buna-N elastomers
Why choose 961 (PS-961)
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T-6A footprint for quick, drop-in replacement
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Machined carbon vs. molded carbon for improved surface finish and stability
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Dependable Buna-N for standard pool/spa chemistry
Upgrades / Variations (same footprint)
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1000 — Basic
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3865 — Premium + Viton
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1000cv— Molded carbon
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1000cvss — Silicon Carbide / Silicon Carbide / Viton
Explore our full lineup of Single Spring Seals—PS replacements, pool/spa seals, and our SPS line.
Looking for more? Shop Pump Repair Kits, Parts & Accessories, and Pre-Cut Gaskets.
Have questions? Check out our Pool/Spa Small Pump Guide or call us anytime—we’re here to help
Please click “specifications for OEM numbers and Nameplate Data
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SPECIFICATIONS
OEM numbers: 071734S, 071734SP , 017164 , 017165 , 071734S
Brands: Intelliflo®
Nameplate Data: ENPO PUMP COMPANY (Division of CRANE PUMPS & SYSTEMS) , LITTLE GIANT PUMP COMPANY (Division of FRANKLIN ELECTRIC COMPANY, INC.) , PENTAIR POOL PRODUCTS
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PHYSICAL PROPERTIES
Seal House Type 6
Our Type 6 configuration combines the best design elements we’ve refined over the years to deliver superior reliability and performance.Key advantages include:
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Crimped rotary face with positive drive — securely held in place to prevent dislodgment during installation.
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Full metal retainer with positive drive — ensures strength and long-term durability.
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Full rubber bellows construction — provides complete sealing along both the shaft and face, rather than relying on a small O-ring or partial gasket.
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Pure, resin-impregnated carbon machined from stock; high wear and chemical breakdown resistance.
Compatibility & upgrade:
The Type 6 is designed to replace most small seal types commonly used in pool and spa applications, including Type 16, G, A, 6, AV, 2100, and more. Even in its basic form, this seal is a significant upgrade over standard “pool” seals typically available on the market.
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