Seal-Tight Tip Conversion P (Fits all Press Ring Syringes) Kit. Seal-Tight Auto-Lock Adapters save time by ending the need to loosen syringe nuts. Simply press the yellow collar to release tip. Adapters install easily in two minutes. **This manufacturer may assess a restocking fee of up to 50% on returned items. Please call Net32 Customer Service regarding return policy 1-800-517-1997.