1. Adapter Conversion Kit: This conversion kit is specifically designed to connect 40mm hoses to 3.8 cm filter inlets/outlets. It ensures compatibility and convenience for hose size adaptation. 2. UsageAn essential component for aboveground pools, this adapter conversion kit allows you to connect pools to filters of various brands. It expands your options and flexibility in maintaining the cleanliness and functionality of your pool. 3. Easy InstallationWith a simple attachment of the adapters to the hoses and connection to the filter inlets/outlets, this conversion kit offers hassle installation. No complicated tools or modifications are required. 4. SpecificationsMade of plastic material, this conversion kit measures approximately 46 x 3.63 cm (outer diameter x inner diameter). It is designed for pools and comes in types 1, 2, and 3. Type 2 includes 2 adapters and 1 belt.