Flexible Vacuum Pump Coupler Sleeve Replacement For PR-308, 7/8 Inch Length, 1-1/8 Inch Diameter, Replaces 231415, Guardian 18, 684520331976, Durable Sleeve Only

Flexible Vacuum Pump Sleeve for PR-308 7/8 x 1-1/8in Single
✔️ Length 7/8 in, diameter 1-1/8 in, replaces PR-308 231415

This sleeve-only replacement fits vacuum pump couplers used on PR-308 systems, restoring fit and reliability.

✅ Length: 7/8 in (22.23 mm)
✅ Diameter: 1-1/8 in (28.58 mm)
✅ Replaces: PR-308, 231415, Guardian 18, 684520331976
✅ Sleeve type: Durable sleeve only

💡 What is a vacuum pump coupler sleeve replacement used for in maintenance?

In general, this handy part protects the coupling and keeps alignment tight in vacuum pump setups.

- Protects the coupler from wear and debris
- Helps maintain proper alignment for consistent performance
- Commonly used with PR-308, 231415, Guardian 18 and similar parts
- A simple sleeve replacement to extend pump life
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