Meet the Plumb Pak 7/16 in. D Rubber Cone Washer and Ring — a compact, dependable 2-pack crafted to seal faucet and ballcock nuts with precision. Designed for both DIY enthusiasts and professional plumbers, this rubber cone washer delivers a reliable, long-lasting seal under changing water pressures.
Why it matters
This two-piece rubber cone washer and ring offers a tight, leak-resistant seal where faucet or ballcock nuts meet supply lines. The flexible rubber construction accommodates minor irregularities in seating surfaces, reducing the chances of drips and corrosion over time. With two washers in every pack, you’re prepared for typical repairs or replacements without a second trip to the hardware store.
Key specifications
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Interior diameter: 7/16 in
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Exterior diameter: 5/8 in
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Material: Rubber
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Package quantity: 2 pieces
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Fits: Faucet or ballcock nut
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Packaging: Carded
Who benefits from this set
- Homeowners tackling faucet leaks or replacing worn seals during sink, vanity, or toilet repairs
- Plumbers needing a reliable, ready-to-use rubber seal for standard faucet and fill-valve connections
- Renters and property managers seeking a dependable, budget-friendly replacement kit
Practical use cases
- Replacing a dripping faucet connection where the nut seal is worn or deformed
- Re-sealing a toilet fill valve or ballcock connection to prevent slow leaks
- Keeping a spare set on hand for quick, professional-grade repairs
Installation tips
Before you install, ensure all surfaces are clean and dry. Slide the rubber cone washer and ring into place with the interior opening facing the nut, then tighten gradually to the recommended torque. If you notice persistent leaks after reseating, inspect the mating surfaces for cracks or mineral buildup and consider replacing adjacent components to restore a solid seal.
