Molded Ring Gasket Brüder Mannesmann M99741 — Black/Brown/Red, Ring Form

The BRÜDER MANNESMANN M99741 sanitary seal assortment is a 141-piece kit containing 18 different types of seals designed for plumbing maintenance and repair. The set includes a wide range of gaskets and O-rings in multiple sizes, intended to replace worn or leaking seals in taps, fittings, valves and pipe connections. Supplied as a single organized kit, it is suitable for professionals and home users who require a comprehensive selection of replacement seals for everyday plumbing tasks.

Advantages

The assortment brings together a broad variety of elastomer seals in one compact kit, reducing the need to source individual parts. The multiple sizes and types increase the likelihood of finding the correct seal on the first visit, which saves time during repair work. The seals are versatile for use in common plumbing applications, providing straightforward replacement options for both metal and plastic connections.

Suitable for

• Repairing leaking taps and faucets
• Replacing O-rings and gaskets in valves and fittings
• Maintaining household plumbing systems
• Plumbing service kits for tradespeople and handymen

When it may not be suitable

This assortment is intended for typical household and light-commercial plumbing tasks; it may not include specialized seals required for high-pressure industrial systems, proprietary manufacturer-specific parts, or large-diameter pipe gaskets. For systems that require certified materials for potable water approval, chemical resistance, or extreme temperature tolerance, verify material suitability before use.

Key specifications

• Number of pieces: 141
• Variety of types: 18 different seals
• Contents: selection of gaskets and O-rings in multiple sizes
• Typical materials: elastomer seals suitable for plumbing (various rubbers)
• Intended use: taps, fittings, valves and standard pipe connections

How to use

Select the seal that matches the original part in size and profile, clean the mating surfaces, and remove any debris or corrosion before installation. Lubricate O-rings lightly with a compatible lubricant if recommended, then position the seal correctly and reassemble the fitting according to the component manufacturer’s instructions. Test the repaired connection under normal operating pressure and check for leaks.

What to consider before purchase

• Verify the seal sizes and types you commonly need to ensure the assortment contains appropriate matches.
• Confirm material compatibility with the fluids, temperatures and pressures in your system.
• Consider whether you require certified materials for potable water or specialized chemical resistance.

Usage recommendations

Keep the assortment organised and store seals in a cool, dry place away from direct sunlight to preserve elastomer properties. When unsure about material compatibility or for critical installations, consult manufacturer specifications or a qualified plumber before replacing seals.