Exhibit 99.1 Leslie’s, Inc. Announces Second Quarter Fiscal 2024 Financial Results • Sales of $188.7 million • Net Loss of $34.6 million • Adjusted EBITDA of $(19.3) million • Diluted earnings per share of $(0.19); Adjusted diluted earnings per share of $(0.17) • Company reaffirms fiscal 2024 outlook PHOENIX, AZ - May 8, 2024 – Leslie’s, Inc. (“Leslie’s”, “we”, “our”, “its”, or “Company”; NASDAQ: LESL), the largest and most trusted direct-to-consumer brand in the U.S. pool and spa care industry, today annou ...