Lee's Insert for Discard-A-Stone, 100 Count

These inserts are replacement parts for Lee's Discard-A-Stone air diffusers. They are reusable and fit the coarse, fine and slim versions.

• Quantity: 100
• Fits coarse, fine and slim Discard-A-Stones
• Reusable
• Made in the USA

Seat each insert firmly in the stone before connecting airline tubing.