- The O-RING-BASE-25pk is a pack of 25 replacement rubber O-rings.
- They are used on the bottom of many Ultralight base adapters such as the AD-1420, AD3816, AD-6MM, and AD8MM adapters.
- The base O-rings are Buna, Size 113N70
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Ultralight O-RING-BASE-25pk ball O-rings for the AD-1420 and AD-3816 ball adapters
|Dimensions||4.5 × 4 × 1 in|