Super Large Bore Inflator Adaptor. New! Safer alternative to the IN-80A. Left hand threads on union body - will not come loose when screwing on to valve. Non-removable stem guide. 3/4" pipe thread for easy air hose connection. Will insert or extract CH-8 or CH-9 core housing. Extractor is rugged enough so that the core housing can be loosened or tightened without being damaged. The IN-100A inflator adapter saves time by fast inflation or deflation on a tire.