Replacement felt and O-rings | Sumo | DonnyFL

Replacement Felt and O-Rings | Sumo | DonnyFL – Air Pressure Maintenance Kit

This maintenance kit contains four sheets of felt and corresponding O-rings for maintaining your DonnyFL Sumo moderator. The felt inside a moderator captures particles and dampens sound in air rifles. Over time, this material can become saturated, making replacement necessary for optimal performance.

Technical Specifications

This set consists of four pieces of felt and the required O-rings for a complete maintenance service. The black felt is specifically designed for the DonnyFL Sumo moderator. The O-rings ensure an airtight seal between the different components of the moderator.

Application During Maintenance

Regular replacement of the felt keeps your moderator in good condition. Open the moderator according to DonnyFL's instructions, remove the old felt, and insert the new sheets. Replace the O-rings at the same time to prevent leakage. This maintenance extends the lifespan of your moderator and ensures it continues to function consistently.

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