Replacement Parts for XC Series Course Pond & Waterfall Pump A wide selection of maintenance and replacement parts that will help you get your XC Series Course Pump back up and running again in no time. Features ⌄ 894012: Replacement O-ring for XC1500-2000 894013: Replacement O-ring for XC4200/5100/5900 More Details How to Use Resources No Specifications available. No product additional details available. No Resources available.