Made from good and rubber, the 4560 conversion Included O rings and washers provide leak proof connection for reliability use Includes 4x 1 1 / 2 " pool hose connector adapters, 4x O rings, 4x washers, and 2x tapes for a secure, leakproof fit when connecting hoses This 4560 hose adapter set is perfect for pools, fitting most soft sided pool filtrations systems and Haywards pool pumps It connects aboves ground pool hoses to 1 1 / 2 " threaded PVC adapters for versatile use Designed to convert 40mm hoses to 1 1 / 2 " standard PVC threads, this adapter set easily links brand pools to without pumps and The straightforward design allows quick setup between and Haywards systems, with clear instructions for smooth assembly and optimal functionality, Manufacturer: Veltros