Garmin Descent T1 Transmitter Air Spool and Flow Restrictor Kit

Dive technicians and self-servicing divers reach for this kit when a Descent T1 transmitter starts delivering erratic pressure readings or develops a slow leak. The usual culprits—a worn air spool or a clogged flow restrictor—are exactly what these genuine Garmin replacement parts address. Inside the pack you’ll find the air spool, flow restrictor, and O-rings needed to restore precise air flow and a watertight seal, bringing your transmitter back to factory performance.

Key specifications

• Compatible with Garmin Descent T1 transmitter
• Includes air spool, flow restrictor, and O-rings
• Marine-grade metal spool (brass or stainless steel)
• O-rings made from nitrile or Viton for diving applications
• User-serviceable with technical knowledge and tools
• Part of routine maintenance for dive transmitters
• Manufacturer part number: 010-12811-00

Why choose it

Using genuine components helps maintain the integrity of your air integration system and extends the life of your transmitter. This kit provides the exact replacement parts specified by Garmin, ensuring a precise fit and reliable performance. The marine-grade materials withstand the harsh underwater environment, while the high-quality O-rings provide a secure seal against leaks. By replacing worn parts proactively, you avoid potential failures during dives and ensure accurate pressure data at all times.

Ideal use cases

• Annual or bi-annual transmitter maintenance
• Repairing a transmitter with erratic pressure readings
• Replacing O-rings during routine servicing

Good to know

Installation requires technical knowledge and appropriate tools. Always follow Garmin's service guidelines and perform a leak test after reassembly. This kit is intended for the Descent T1 transmitter only.