100cv
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DESCRIPTION
Mechanical Seal 100CV — Type 166 / T-16 (5/8″) | PS-100V-CMS Equivalent
Equal to industry standard 100CV / PS-100V-CMS.
Direct-fit Type 166 / T-16 single-spring seal for pool/spa and small-pump applications—built with molded carbon/ceramic faces and Viton/FKM elastomers for added chemical and temperature resistance.At-a-glance specs: 5/8″ shaft • 1.187″ × 0.343″ cup seat • Molded carbon/ceramic faces • Viton/FKM elastomers
Why choose 100CV:
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Viton/FKM upgrade handles higher chlorine, heat, and chemicals better than Buna
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T-16 footprint for quick, drop-in replacement
Upgrades / Variations (same footprint):
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100C — Basic (Buna)
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957 — Premium carbon face (Buna)
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3866 — Premium + Viton
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100CVSS — 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” below for OEM numbers and Pump Nameplate Data
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SPECIFICATIONS
OEM number: PK-0389
Brands: NASH (Division of GARDNER DENVER)
Nameplate Data: None available
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PHYSICAL PROPERTIES
Seal House Type 166
Our Type 166 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 dislodgement 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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Quality materials — delivers extended service life.
Compatibility & upgrade:
The Type 166 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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