Saratoga Spa Filter #9 (laying down) in photo above. Same size as # 9 but blue 'Microban' version giving you antifungal/antimicrobial protection within the paper pleat to help keep you clean. Availability: Usually ships the next business day. S74454MB$22.00 CNY Hot Tubs - 2037 St. Rte. 34, Lansing, NY 14882 Phone: 607-533-9411 - Email: info@cnytubs.com - Web: www.cnytubs.com CNY Hot Tubs acknowledges all trademarks. Copyright ©2001-2008 CNY Tubs All Rights Reserved.