The Python Female Brass Adapter features 3/4" x 27 female thread, enabling you to connect your Python No Spill Clean & Fill System to newer faucets with smaller spout assemblies. Install the adapter when needed, or leave it attached to your faucet for more frequent use. Attaches to the inside thread on the standard Python 69-HD Brass Adaptor. Solid brass construction ensures durability and long-term use. Compatible with all Python No Spill Clean and Fill systems.